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1. The NAROO digitization center

Author

Robert, V., Desmars, J., Lainey, V., Arlot, J.-E., Perlbarg, A.-C., Horville, D., Aboudarham, J., Etienne, C., Guérard, J., Ilovaisky, S., Khovritchev, M. Y., Le Poncin-Lafitte, C., Le Van Suu, A., Neiner, C., Pascu, D., Poirier, L., Schneider, J., Tanga, P., Valls-Gabaud, D., AgroParisTech, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), DPHY, ONERA, Université Paris Saclay (COmUE) [Palaiseau], ONERA-Université Paris Saclay (COmUE), Observatoire de Haute-Provence (OHP), Institut Pythéas (OSU PYTHEAS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut de Recherche pour le Développement (IRD), The Central Astronomical Observatory of the Russian Academy of Sciences [Pulkovo], Russian Academy of Sciences [Moscow] (RAS), Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), United States Naval Observatory (USNO), Centre d'Etudes et de Recherches Historiques de Limoges (CERHILIM), Université de Limoges (UNILIM)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY)

Subjects
instrumentation: high angular resolution, techniques: image processing, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; The New Astrometric Reduction of Old Observations (NAROO) center can be found at the Paris Observatory in Meudon, and it is dedicated to the measurement of astrophotographic plates and the analysis of old observations. The NAROO digitizer consists of a granite-based Newport-Microcontrol open-frame air-bearing XY positioning table, a scientific sCMOS camera, and a telecentric optical system. The plate holder assembly is suited for mounting glass plates up to 350 mm squared. The machine positioning stability is better than 15 nm, and its repeatability is better than 40 nm. With real photographic plate data, we were able to produce measurements with an accuracy better than 65 nm. The renewed interest about photographic plates concerns the expansion of the database of transient objects evolving in time, since digitization now makes it possible to measure images with a high level of accuracy and to identify all the available objects. The information extracted from such materials can be of an astrometric, photometric, and spectroscopic nature, when not purely imaging, with consequences in planetology, near-Earth asteroid risk assessment, astrophysical phenomena, and general relativity, to mention but a few. Through our scientific program in the Gaia era, we detail examples of current and upcoming uses for the community. We invite researchers to use our facilities and digitize their collection by answering our call for proposals.

Published
2021
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2. Analytical framework for mutual approximations

Author

Fayolle, M., Dirkx, D., Visser, P., Lainey, V., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
planets and satellites: individual: Galilean moons, [PHYS]Physics [physics], astrometry, ephemerides, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], methods: analytical
Abstract

International audience; Context. The apparent close encounters of two satellites in the plane of the sky, called mutual approximations, have been suggested as a different type of astrometric observation to refine the moons’ ephemerides. The main observables are then the central instants of the close encounters, which have the advantage of being free of any scaling and orientation errors. However, no analytical formulation is available yet for the observation partials of these central instants, leaving numerical approaches or alternative observables (i.e. derivatives of the apparent distance instead of central instants) as options. Aims. Filling that gap, this paper develops an analytical method to include central instants as direct observables in the ephemerides estimation and assesses the quality of the resulting solution. Methods. To this end, the apparent relative position between the two satellites is approximated by a second-order polynomial near the close encounter. This eventually leads to an expression for mutual approximations’ central instants as a function of the apparent relative position, velocity, and acceleration between the two satellites. Results. The resulting analytical expressions for the central instant partials were validated numerically. In addition, we ran a covariance analysis to compare the estimated solutions obtained with the two types of observables (central instants versus alternative observables), using the Galilean moons of Jupiter as a test case. Our analysis shows that alternative observables are almost equivalent to central instants in most cases. Accurate individual weighting of each alternative observable, accounting for the mutual approximation’s characteristics (which are automatically included in the central instants’ definition), is however crucial to obtain consistent solutions between the two observable types. Using central instants still yields a small improvement of 10–20% of the formal errors in the radial and normal directions (RSW frame), compared to the alternative observables’ solution. This improvement increases when mutual approximations with low impact parameters and large impact velocities are included in the estimation. Conclusions. Choosing between the two observables thus requires careful assessment, taking into account the characteristics of the available observations. Using central instants over alternative observables ensures that the state estimation fully benefits from the information encoded in mutual approximations, which might be necessary depending on the application of the ephemeris solution.

Published
2021
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3. VizieR Online Data Catalog: Mars moon ephemerides for 14yrs Mars Express data (Lainey+, 2021)

Author

Lainey, V., Pasewaldt, A., Robert, V., Rosenblatt, P., Jaumann, R., Oberst, J., Roatsch, T., Willner, K., Ziese, R., Thuillot, W., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Planets, Ephemerides, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Solar system
Abstract

Table 2: Mean (ν) and standard deviation (σ) on separation s and position angle p (multiplied by the separation) in seconds of degrees for each satellite. N is the number of observations by satellite (one number per coordinate). The year appearing next to each observatory name corresponds to the observed Mars opposition. Table 3: Mean (ν) and standard deviation (σ) on right ascension and declination in seconds of degrees for each satellite. }N} is the number of observations by satellite. Table 4: Mean (ν) and standard deviation (σ) on right ascension and declination for each satellite. Both angles are multiplied by the distance spacecraft-moon to obtain kilometers. }N} is the number of observations by satellite. In the Pasewaldt et al. (2015) publication positions of Phobos have been determined using control point (CP) and/or limb point (LF) measurements. The former are based on the satellite's control network, a set of identifiable surface features well-distributed over the body's surface and defining its reference system. Recent MEX SRC measurements have been distinguished into observations made during linear and non-linear pointing variations. If the observations' pre-fit residuals deviated by more than three sigma from the mean value, they have been additionally categorised as an outlier. In case of only a few outliers it could not be clarified whether they have been related to non-linear variations in pointing or not. Some measurements are based on fits of the shape model-derived limb to only very short limb point arcs in the image (see also subsection 3.2.1). Table 5: Mean (ν) and standard deviation (σ) on sample and line in pixel and kilometer for each satellite. }N} is the number of observations by satellite. MRO (single) gathers data where only one moon was observable at a time. Table 6: Initial conditions and related uncertainties of Phobos and Deimos in the ICRF after fit at initial epoch J2000 (Julian day 2451545.0). Units are }km} and }km/sec}. All digits have been kept for reproducibility of our results. (5 data files).

Published
2021

4. VizieR Online Data Catalog: Saturnian satellites Cassini ISS astrometry (Cooper+, 2018)

Author

Cooper, N. J., Lainey, V., Meunier, L-E., Murray, C. D., Zhang, Q-F, Baillie, K., Evans, M. W., Thuillot, W., Vienne, A., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Positional data, [SDU]Sciences of the Universe [physics], Planets, Solar system
Abstract

International audience; Table1.dat contains astrometric observations of the Saturnian satellites Mimas, Enceladus, Tethys, Dione, Rhea, Iapetus, Hyperion, Pandora, Janus and Helene,from Cassini ISS NAC images. The camera's field of view is ~0.35-degree with a resolution of ~1.2354-arcsec/pixel. Image size is 1024x1024 pixel. Positions are provided in both right ascension and declination, and as image pixel locations. The orientation of the camera's pointing vector is also provided. Positions are given in the International Celestial Reference Frame (ICRF), centered on the Cassini spacecraft. Measured reference star positions used to estimate the camera pointing correction are provided separately in table5.dat. The origin of the line, sample coordinate system is at the top left of the image with line, y, increasing downward and sample, x, to the right. (2 data files).

Published
2017

5. Astrometric observations of the Galilean satellites using stacking imaging and GDR1

Author

Lainey, V., Arlot, J.E., Robert, V., Thuillot, W., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Published
2017

6. Gaia Data Release 1

Author

Brown, A., Vallenari, A., Prusti, T., de Bruijne, J. H.J., Mignard, F., Drimmel, R., Babusiaux, C., Bailer-Jones, C. A.L., Bastian, U., Biermann, M., Evans, D., Eyer, L., Jansen, F., Jordi, C., Katz, D., Klioner, S., Lammers, U., Lindegren, L., Luri, X., O’mullane, W., Panem, C., Pourbaix, D., Randich, S., Sartoretti, P., Siddiqui, H., Soubiran, C., Valette, V., van Leeuwen, F., Walton, N., Aerts, C., Arenou, F., Cropper, M., Høg, E., Lattanzi, M., Grebel, E., Holland, A., Huc, C., Passot, X., Perryman, M., Bramante, L., Cacciari, C., Castañeda, J., Chaoul, L., Cheek, N., de Angeli, F., Fabricius, C., Guerra, R., Hernández, J., Jean-Antoine-Piccolo, A., Masana, E., Messineo, R., Mowlavi, N., Nienartowicz, K., Ordóñez-Blanco, D., Panuzzo, P., Portell, J., Richards, P., Riello, M., Seabroke, G., Tanga, P., Thévenin, F., Torra, J., Els, S., Gracia-Abril, G., Comoretto, G., Garcia-Reinaldos, M., Lock, T., Mercier, E., Altmann, M., Andrae, R., Astraatmadja, T., Bellas-Velidis, I., Benson, K., Berthier, J., Blomme, R., Busso, G., Carry, B., Cellino, A., Clementini, G., Cowell, S., Creevey, O., Cuypers, J., Davidson, M., de Ridder, J., de Torres, A., Delchambre, L., Dell’oro, A., Ducourant, C., Frémat, Y., García-Torres, M., Gosset, E., Halbwachs, J.-L., Hambly, N., Harrison, D., Hauser, M., Hestroffer, D., Hodgkin, S., Huckle, H., Hutton, A., Jasniewicz, G., Jordan, S., Kontizas, M., Korn, A., Lanzafame, A., Manteiga, M., Moitinho, A., Muinonen, K., Osinde, J., Pancino, E., Pauwels, T., Petit, Jean-Marc, Recio-Blanco, A., Robin, Annie C., Sarro, L., Siopis, C., Smith, M., Smith, K., Sozzetti, A., Thuillot, W., van Reeven, W., Viala, Y., Abbas, U., Abreu Aramburu, A., Accart, S., Aguado, J., Allan, P., Allasia, W., Altavilla, G., Álvarez, M., Alves, J., Anderson, R., Andrei, A., Anglada Varela, E., Antiche, E., Antoja, T., Antón, S., Arcay, B., Bach, N., Baker, S., Balaguer-Núñez, L., Barache, C., Barata, C., Barbier, A., Barblan, F., Barrado y Navascués, D., Barros, M., Barstow, M., Becciani, U., Bellazzini, M., Bello García, A., Belokurov, V., Bendjoya, P., Berihuete, A., Bianchi, L., Bienaymé, O., Billebaud, F., Blagorodnova, N., Blanco-Cuaresma, S., Boch, T., Bombrun, A., Borrachero, R., Bouquillon, S., Bourda, G., Bouy, H., Bragaglia, A., Breddels, M., Brouillet, N., Brüsemeister, T., Bucciarelli, B., Burgess, P., Burgon, R., Burlacu, A., Busonero, D., Buzzi, R., Caffau, E., Cambras, J., Campbell, H., Cancelliere, R., Cantat-Gaudin, T., Carlucci, T., Carrasco, J., Castellani, M., Charlot, P., Charnas, J., Chiavassa, A., Clotet, M., Cocozza, G., Collins, R., Costigan, G., Crifo, F., Cross, N. J.G., Crosta, M., Crowley, C., Dafonte, C., Damerdji, Y., Dapergolas, A., David, P., David, M., de Cat, P., de Felice, F., de Laverny, P., de Luise, F., de March, R., de Martino, D., de Souza, R., Debosscher, J., del Pozo, E., Delbo, M., Delgado, A., Delgado, H., Di Matteo, P., Diakite, S., Distefano, E., Dolding, C., dos Anjos, S., Drazinos, P., Duran, J., Dzigan, Y., Edvardsson, B., Enke, H., Evans, N., Eynard Bontemps, G., Fabre, C., Fabrizio, M., Faigler, S., Falcão, A., Farràs Casas, M., Federici, L., Fedorets, G., Fernández-Hernández, J., Fernique, P., Fienga, A., Figueras, F., Filippi, F., Findeisen, K., Fonti, A., Fouesneau, M., Fraile, E., Fraser, M., Fuchs, J., Gai, M., Galleti, S., Galluccio, L., Garabato, D., García-Sedano, F., Garofalo, A., Garralda, N., Gavras, P., Gerssen, J., Geyer, R., Gilmore, G., Girona, S., Giuffrida, G., Gomes, M., González-Marcos, A., González-Núñez, J., González-Vidal, J., Granvik, M., Guerrier, A., Guillout, P., Guiraud, J., Gúrpide, A., Gutiérrez-Sánchez, R., Guy, L., Haigron, R., Hatzidimitriou, D., Haywood, M., Heiter, U., Helmi, A., Hobbs, D., Hofmann, W., Holl, B., Holland, G., Hunt, J. A.S., Hypki, A., Icardi, V., Irwin, M., Jevardat de Fombelle, G., Jofré, P., Jonker, P., Jorissen, A., Julbe, F., Karampelas, A., Kochoska, A., Kohley, R., Kolenberg, K., Kontizas, E., Koposov, S., Kordopatis, G., Koubsky, P., Krone-Martins, A., Kudryashova, M., Kull, I., Bachchan, R., Lacoste-Seris, F., Lanza, A., Lavigne, J.-B., Le Poncin-Lafitte, C., Lebreton, Y., Lebzelter, T., Leccia, S., Leclerc, N., Lecoeur-Taibi, I., Lemaitre, V., Lenhardt, H., Leroux, F., Liao, S., Licata, E., Lindstrøm, H. E.P., Lister, T., Livanou, E., Lobel, A., Löffler, W., López, M., Lorenz, D., Macdonald, I., Magalhães Fernandes, T., Managau, S., Mann, R., Mantelet, G., Marchal, O., Marchant, J., Marconi, M., Marinoni, S., Marrese, P., Marschalkó, G., Marshall, D., Martín-Fleitas, J., Martino, M., Mary, N., Matijevič, G., Mazeh, T., Mcmillan, P., Messina, S., Michalik, D., Millar, N., Miranda, B., Molina, D., Molinaro, R., Molinaro, M., Molnár, L., Moniez, M., Montegriffo, P., Mor, R., Mora, A., Morbidelli, R., Morel, T., Morgenthaler, S., Morris, D., Mulone, A., Muraveva, T., Musella, I., Narbonne, J., Nelemans, G., Nicastro, L., Noval, L., Ordénovic, C., Ordieres-Meré, J., Osborne, P., Pagani, C., Pagano, I., Pailler, F., Palacin, H., Palaversa, L., Parsons, P., Pecoraro, M., Pedrosa, R., Pentikäinen, H., Pichon, B., Piersimoni, A., Pineau, F.-X., Plachy, E., Plum, G., Poujoulet, E., Prša, A., Pulone, L., Ragaini, S., Rago, S., Rambaux, N., Ramos-Lerate, M., Ranalli, P., Rauw, G., Read, A., Regibo, S., Reylé, C., Ribeiro, R., Rimoldini, L., Ripepi, V., Riva, A., Rixon, G., Roelens, M., Romero-Gómez, M., Rowell, N., Royer, F., Ruiz-Dern, L., Sadowski, G., Sagristà Sellés, T., Sahlmann, J., Salgado, J., Salguero, E., Sarasso, M., Savietto, H., Schultheis, M., Sciacca, E., Segol, M., Segovia, J., Segransan, D., Shih, I.-C., Smareglia, R., Smart, R., Solano, E., Solitro, F., Sordo, R., Soria Nieto, S., Souchay, J., Spagna, A., Spoto, F., Stampa, U., Steele, I., Steidelmüller, H., Stephenson, C., Stoev, H., Suess, F., Süveges, M., Surdej, J., Szabados, L., Szegedi-Elek, E., Tapiador, D., Taris, F., Tauran, G., Taylor, M., Teixeira, R., Terrett, D., Tingley, B., Trager, S., Turon, C., Ulla, A., Utrilla, E., Valentini, G., van Elteren, A., van Hemelryck, E., van Leeuwen, M., Varadi, M., Vecchiato, A., Veljanoski, J., Via, T., Vicente, D., Vogt, S., Voss, H., Votruba, V., Voutsinas, S., Walmsley, G., Weiler, M., Weingrill, K., Wevers, T., Wyrzykowski, Ł., Yoldas, A., Žerjal, M., Zucker, S., Zurbach, C., Zwitter, T., Alecu, A., Allen, M., Allende Prieto, C., Amorim, A., Anglada-Escudé, G., Arsenijevic, V., Azaz, S., Balm, P., Beck, M., Bernstein, H.-H., Bigot, L., Bijaoui, A., Blasco, C., Bonfigli, M., Bono, G., Boudreault, S., Bressan, A., Brown, S., Brunet, P.-M., Bunclark, P., Buonanno, R., Butkevich, A., Carret, C., Carrion, C., Chemin, L., Chéreau, F., Corcione, L., Darmigny, E., de Boer, K., de Teodoro, P., de Zeeuw, P., Delle Luche, C., Domingues, C., Dubath, P., Fodor, F., Frézouls, B., Fries, A., Fustes, D., Fyfe, D., Gallardo, E., Gallegos, J., Gardiol, D., Gebran, M., Gomboc, A., Gómez, A., Grux, E., Gueguen, A., Heyrovsky, A., Hoar, J., Iannicola, G., Isasi Parache, Y., Janotto, A.-M., Joliet, E., Jonckheere, A., Keil, R., Kim, D.-W., Klagyivik, P., Klar, J., Knude, J., Kochukhov, O., Kolka, I., Kos, J., Kutka, A., Lainey, V., Lebouquin, D., Liu, C., Loreggia, D., Makarov, V., Marseille, M., Martayan, C., Martinez-Rubi, O., Massart, B., Meynadier, F., Mignot, S., Munari, U., Nguyen, A.-T., Nordlander, T., Ocvirk, P., O’flaherty, K., Olias Sanz, A., Ortiz, P., Osorio, J., Oszkiewicz, D., Ouzounis, A., Palmer, M., Park, P., Pasquato, E., Peltzer, C., Peralta, J., Péturaud, F., Pieniluoma, T., Pigozzi, E., Poels, J., Prat, G., Prod’homme, T., Raison, F., Rebordao, J., Risquez, D., Rocca-Volmerange, B., Rosen, S., Ruiz-Fuertes, M., Russo, F., Sembay, S., Serraller Vizcaino, I., Short, A., Siebert, A., Silva, H., Sinachopoulos, D., Slezak, E., Soffel, M., Sosnowska, D., Straižys, V., ter Linden, M., Terrell, D., Theil, S., Tiede, C., Troisi, L., Tsalmantza, P., Tur, D., Vaccari, M., Vachier, F., Valles, P., van Hamme, W., Veltz, L., Virtanen, J., Wallut, J.-M., Wichmann, R., Wilkinson, M., Ziaeepour, H., Zschocke, S., Leiden Observatory [Leiden], Universiteit Leiden, INAF - Osservatorio Astronomico di Padova (OAPD), Istituto Nazionale di Astrofisica (INAF), ESA Scientific Support Office, Agence Spatiale Européenne = European Space Agency (ESA), Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), INAF - Osservatorio Astrofisico di Torino (OATo), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Max Planck Institute for Astronomy (MPIA), Astronomische Rechen-Institut [Heidelberg] (ARI), Zentrum für Astronomie der Universität Heidelberg (ZAH), Universität Heidelberg [Heidelberg] = Heidelberg University-Universität Heidelberg [Heidelberg] = Heidelberg University, Institut de Ciencies del Cosmos (ICCUB), Universitat de Barcelona (UB), Institut d'Astronomie et d'Astrophysique [Bruxelles] (IAA), Université libre de Bruxelles (ULB), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Observatoire Astronomique de l'Université de Genève (ObsGE), Université de Genève = University of Geneva (UNIGE), Thales Services, THALES [France], Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), University of Leicester, Konkoly Observatory, Research Centre for Astronomy and Earth Sciences [Budapest], Hungarian Academy of Sciences (MTA)-Hungarian Academy of Sciences (MTA), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Royal Observatory of Belgium [Brussels] (ROB), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Leibniz Institute for Astrophysics Potsdam (AIP)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016
Full Text
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7. VizieR Online Data Catalog: USNO Saturnian observations 1974-1998 (Robert+, 2016)

Author

Robert, V., Pascu, D., Lainey, V., Arlot, J.-E., de Cuyper, J.-P., Dehant, V., Thuillot, W., and bibliotheque, la.

Subjects
Positional data, Planets, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
Abstract

Astrometric and measured data of Saturn, Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion and Iapetus, taken with the U.S. Naval Observatory 26-inch refractor from 1974 to 1998. Astrometric (RA,DEC) positions are geocentric observed positions reduced from stars and refer to the ICRF. They were corrected for all instrumental and spherical effects, except for the light time propagation. Raw data with (x,y) positions of the stars and satellites are available on demand (Vincent Robert, vincent.robert(at)obspm.fr). (9 data files).

Published
2016

8. Data Mining, Ingestion and Distribution of Planetary Data on Natural Satellites

Author

Thuillot, W., Lainey, V., Meunier, L.-E., Normand, J., Arlot, J.-E., Dehant, V., Oberst, J., Rosenblatt, P., Vermeersen, B., Dirkx, D., Gurvits, L., Marty, J.-C., Hussmann, H., bibliotheque, la., Taylor, A. R., Rosolowsky, E., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Taylor, A. R., Rosolowsky, and E.

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; In the framework of the European Union project entitled ESPaCE (European Satellite Partnership for Computing Ephemerides) we have carried out research by collecting unexploited space data and ground-based data for providing new dynamical orbit models and ephemeris of natural satellites and spacecraft orbits. Besides new digitization of old astrometric plate data, Radio Science, VLBI tracking, Laser Ranging methods are applied to these goals. Furthermore shape and gravity field data, reference systems are provided for several natural satellites. This project intends to put all this material online for free access by the scientific community. We describe here the data mining performed, the various data and metadata involved, and the set-up of an astrometric database.

Published
2015

9. Astrometry of natural satellites Improving the dynamics of Jupiter, Mars and Saturn systems with old observations

Author

Robert, V, Pascu, D, Lainey, V, Arlot, Jean-Eudes, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut Polytechnique des Sciences Avancées (IPSA), Retraité, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]
Abstract

International audience; A new astrometric reduction of old photographic plates, benefiting from modern technologies such as sub-micrometric scanners associated with a reduction using accurate catalogues (UCAC at the present time and GAIA in a near future), provides improved knowledge of the orbital motion of planetary satellites.In the framework of an international collaboration first, and in the FP7 ESPaCE european project afterward, U.S. Naval Observatory plates were digitized with the new generation DAMIAN scanning machine of the Royal Observatory of Belgium. The procedure was applied to a few hundred photographic plates of the Martian satellites covering the years 1967-1997, of the Galilean satellites covering the years 1967-1998, and of the major Saturnian satellites covering the years 1974-1998. We provide results with an accuracy better than 60 mas in (RA,Dec) positions of the Martian satellites, better than 70 mas in (RA,Dec) positions of the Galilean moons, and better than 100 mas in (RA,Dec) positions of the major Saturnian moons. Since the positions of the planets may be deduced from the observed (RA,Dec) positions of their satellites, we can also assess the accuracy of the ephemerides of Mars, Jupiter and Saturn.

Published
2014

10. Taking the opportunity of the Gaia reference star catalogue for observing the Solar system in the past

Author

Hestroffer, D, Arlot, J.-E, Lainey, V, Robert, V, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut Polytechnique des Sciences Avancées (IPSA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU]Sciences of the Universe [physics]
Abstract

International audience; The Gaia astrometric catalogue of reference stars will provide proper motions of stars until mag 18 with an accuracy better than 6 mas over one century. So, we may reduce all astrometric observations of Solar System objects made since the end of the XIXth century with an accuracy better than the present accuracy of the best reference star catalogues such as the UCAC2 or UCAC4. This should solve or considerably reduce the problems of biases in ephemerides because of zonal errors in the catalogues. We performed tests on photographic plates and, thanks to the use of sub-micrometric scanners, we succeeded to improve the reduction of plates made in the 1960's for planetary satellites. Even with an accuracy less than the expected one of the future Gaia catalogue, we show a systematic shift of the ephemerides during the last decades.

Published
2014

11. Gaia contribution to the dynamics of Solar System Objects

Author

Hestroffer, D., Berthier, J., Benoit Carry, David, P., Thuillot, W., Arlot, J. E., Bancelin, D., Fouchard, M., Ivantsov, A., Kovalenko, I., Lainey, V., Leponcin-Lafitte, C., Tanga, P., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Groupe Astrométrie et Planétologie (GAP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Institut fur Astronomie der Universitat Wien, Vienna, Austria, Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Théorie et métrologie, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; The ESA astrometric mission Gaia has been launched in December 2013. It is currently in its commissioning phase, with the first scientific data expected to be downloaded in June 2014. Gaia has the capability to observe, in addition to about one billion of stars, a large number of solar system objects (SSO) [1]. The satellite and telescope will continuously scan the sky during 5 years, providing high precision astrometry and photometry for about 300,000 asteroids (and several tens of planetary satellites and comets), as well as modest imaging for a fraction of them. The nominal limiting magnitude is expected to be V

Published
2014

12. Astrometry of natural satellites Improving the dynamics of planetary systems with old observations

Author

Robert, V, Pascu, D, Lainey, V, Arlot, Jean-Eudes, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut Polytechnique des Sciences Avancées (IPSA), Retraité, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]
Abstract

International audience; A new astrometric reduction of old photographic plates, benefiting from modern technologies such as sub-micrometric scanners associated with a reduction using accurate catalogues (UCAC at the present time and GAIA in a near future), provides improved knowledge of the orbital motion of planetary satellites.In the framework of an international collaboration first, and in the FP7 ESPaCE european project afterward, U.S. Naval Observatory plates were digitized with the new generation DAMIAN scanning machine of the Royal Observatory of Belgium. The procedure was applied to a few hundred photographic plates of the Galilean satellites covering the years 1967-1998, and of the Martian satellites covering the years 1967-1997. We provide results with an accuracy better than 70 mas in (RA,Dec) positions of the Galilean moons, and better than 60 mas in (RA,Dec) positions of the Martian satellites.Since the positions of Jupiter and Mars may be deduced from the observed (RA,Dec) positions of their satellites, we can also assess the accuracy of the ephemerides of Jupiter and Mars.

Published
2014

13. A new reduction of USNO photographic plates of the Martian satellites

Author

Robert, V, Pascu, Dan, Arlot, Jean-Eudes, Lainey, V., Institut Polytechnique des Sciences Avancées (IPSA), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Retraité, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]
Abstract

International audience; Thanks to the new technologies, a new astrometric reduction of old photographic plates can provide a better knowledge of the orbital motion of planetary satellites. In the cadre of the FP7 european project, USNO plates were digitized with the new generation DAMIAN scanning machine. The procedure was applied to various photographic plates and in particular to the USNO photographic plates of the Galilean satellites. The astrometric results are the most precise. Here we consider a set of a few hundred photographic plates of the Martian satellites, taken at the USNO, and covering the years 1969-1997. A specific procedure was developed to obtain a high precision and we expect an accuracy better than 100 mas in (RA,Dec) positions of each moon. Since the position of Mars may also be deduced from the observed RA and Dec positions of Phobos and Deimos, we can also assess the accuracy of Mars' ephemeris. First astrometric results will be presented.

Published
2012

14. Precise CCD positions of Galilean satellite-pairs

Author

Peng, Q., He, H., Lainey, V., Vienne, A., Unité de Mécanique (UME), École Nationale Supérieure de Techniques Avancées (ENSTA Paris), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
[PHYS]Physics [physics], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012
Full Text
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15. GETEMME - A Mission to Explore the Martian Satellites and the Limits of Solar System Physics

Author

Oberst, J., Lainey, V., Le Poncin-Lafitte, C., German Aerospace Centre (DLR) and the Technical University of Berlin, Germany, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, and Université Paris sciences et lettres (PSL)

Subjects
Getemme, laser ranging, Martian satellites, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Solar System Physics
Abstract

International audience; We propose a mission to Mars and its satellites Phobos and Deimos, within the ESA COSMIC VISION program. A spacecraft (S/C) shall deploy retroreflectors on each satellite. These reflectors will act as targets for laser ranging from a Martian orbit for a wide range of science applications in Solar System Dynamics and Fundamental Physics.

Published
2011

16. A new astrometric reduction of photographic plates using the DAMIAN digitizer: improving the dynamics of the Jovian system

Author

Robert-Pélissier, Vincent, De Cuyper, Jean-Pierre, Arlot, Jean-Eudes, de Decker, Georges, Guibert, Jean, Lainey, V., Pascu, Dan, Winter, Lars, Zacharias, Norbert, Institut Polytechnique des Sciences Avancées (IPSA), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Royal Observatory of Belgium [Brussels] (ROB), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), United States Naval Observatory (USNO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
planets and satellites, [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], astrometry, ephemerides, image processing
Abstract

International audience; The astrometric monitoring of the natural planetary satellites is an important step to assess the formation and the evolution of these systems. However, in order to quantify relevant gravitational effects such as tidal forces, it is necessary to have very accurate observations over a long time interval. Unfortunately, the accuracy is decreasing as one considers older observations. To solve this issue, digitizing of old photographic plates is an attractive method, but a high accuracy in the measurement and the reduction of those plates is absolutely necessary.We have developed methods and algorithms adapted to specific plates provided by USNO, using the DAMIAN digitizer of ROB. From a set of 35 plates taken in 1974, we have been able to produce measurements with an accuracy better than 0.08 μm and after reduction using the UCAC2 catalogue, rms residuals of 35 mas (1.7 μm) for intersatellite positions (when the original reduction provided 100 mas) and of 65 mas for equatorial RA and Dec. positions (which were not possible to get with the original reduction). First results on the dynamics of the satellites and of the planet Jupiter are provided.

Published
2011
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17. Implications of rotation, orbital states, energy sources, and heat transport ofr internal processes in icy satellites

Author

Hussmann, H., Choblet, G., Lainey, V., D. L., Matson, Sotin, C., Tobie, G., Hoolst T., Van, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2010

18. Latest VO developments at Paris VO Data Center

Author

Le Sidaner, P., Dubernet, M. -L, Simon, G., Aboudarham, J., Baillard, A., Barache, C., Boone, F., Chilingarian, I., Dantel-Fort, M., Desert, J. M., Didelon, P., Egret, D., Guibert, J., Hebrard, G., Lainey, V., Magnard, F., Chiara Marmo, Martin, J. M., Pelat, D., Renié, C., Sarkissian, A., Schneider, J., Theureau, G., Vachier, F., Observatoire de Paris - Site de Paris (OP), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Ingénieurs, Techniciens et Administratifs, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Physique solaire, Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), CEA- Saclay (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Groupe Astrométrie et Planétologie (GAP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, D. Barret, F. Casoli, T. Contini, G. Lagache, A. Lecavelier, and and L. Pagani (eds)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; Paris VO Data Center aims at providing VO access to its databases ressources, at participating to international standards developments, at implementing VO compliant simulation codes and data visuali- sation and analysis softwares. We will present some of the latest VO developments involving ressources from Paris VO Data Center, i.e, the first simple spectra access for data of the Nanay radiotelescope observatory, a validator for Simple Spectra Access protocols and its implementation tools, a Cone-search access to the exoplanet catalog, a pipeline for images processing to make them ”science-ready” in vo-format, implemen- tation of Simple Image Access using Geographic Information System in databases. Developments involving other ressources may be found in their own contributions to this meeting.

Published
2006

19. Phobos' acceleration and Mars interior

Author

Rivoldini, A., Lainey, V., Verhoeven, O., Mocquet, A., Hoolst T., Van, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

20. Implementing Ephemerides Facilities in the VizieR and Aladin Tools

Author

Berthier, J., Vachier, F., Lainey, V., Thuillot, W., Arlot, J. -E, Fernique, P., Ochsenbein, F., Francoise Genova, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire Gemini (LG), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Tsvetkov, M., Golev, V., Murtagh, F., Molina, and R.

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; The Institut de mecanique celeste et de calcul des ephemerides (IMCCE, Paris Observatory) is willing to provide information on Solar System objects to the Astronomical Virtual Observatory. The first step is the interconnection of IMCCE ephemerides servers with the Vizier and Aladin tools of the Centre de donnees astronomiques de Strasbourg (CDS). The services have been made interoperable, using the International Virtual Observatory standard VOTable. A request related to the position of asteroids made by users of Aladin or Vizier is transmitted to the ephemerides servers of IMCCE and the answer is quickly and automatically returned. Equipped with this new facility, Aladin allows in particular users to explore photographic archives stored at CDS, observatory archives accessible through Aladin, or to process their own images, in order to identify asteroids. The ephemerides are obtained from a numerical integration using as initial conditions the orbital data extracted from the Lowell database of asteroids. This work is still in development but, at this stage, the method is well established and we intend to give access to this tool in a few months.

Published
2006

21. VO Paris Federation

Author

Simon, G., Dubernet, M. L., Le Sidaner, P., Aboudarham, J., Barache, C., Berthier, J., Boone, F., Borsenberger, J., Caillat, M., Igor Chilingarian, Crovisier, J., Dantel-Fort, M., Debatz, B., Dedieu, C., Egret, D., Gontier, A. M., Guibert, J., Guillaume, D., Haigron, R., Hennebelle, P., Jegouzo, I., Lainey, V., Le Bourlot, J., Le Petit, F., Martin, J. M., Micheneau, P., Moreau, N., Pelat, D., Perault, M., Prugniel, P., Renié, C., Roques, F., Royer, F., Schneider, J., Tajahmady, F., Theureau, G., Thuillot, W., Tran-Minh, F., Vachier, F., Vetois, J., Viallefond, F., Baillard, A., Bertin, E., Desert, J. M., Ferlet, R., Hebrard, G., Magnard, F., Malapert, J. -C, Marquette, J. B., Marmo, C., Mellier, Y., Sarkissian, A., Mccracken, H., Lesquoy, E., Didelon, P., Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Ingénieurs, Techniciens et Administratifs, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Physique solaire, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Groupe Astrométrie et Planétologie (GAP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), CEA- Saclay (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), C. Gabriel, C. Arviset, D. Ponz and E. Solano, eds., Henry, Florence, and C. Gabriel, C. Arviset, D. Ponz and E. Solano, eds.

Subjects
[PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], PADC
Abstract

International audience; VO Paris Federation is a partnership between Paris Obser-vatory, IAP, IPSL and CEA. Its objectives are to provide VO access toits databases ressources, contribute to international standards develop-ments, implement VO compliant simulation codes and data visualisa-tion and analysis software. The various activities are organised into por-tals whose functions are (i) to provide visibility and information on theprojects and (ii) to encourage collaborations. The portals are linked tothematic activities and resources: solar system (ephemerides, astrometry,physical characteristic of small bodies of the solar system, planetology),reference systems, exoplanet database, legacy (archives from the Nan ̧cayRadio Telescope, some specific data from the DENIS and EROS surveys,MAMA), solar physics, stellar and galactic databases and services, atomicand molecular databases and services, simulation codes and data analysis.

Published
2005

22. Io's acceleration vs. Observational accuracy

Author

Lainey, V., Tobie, G., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2004

23. Théorie dynamique des satellites galiléens

Author

Lainey, V., Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Observatoire de Paris, A.Vienne(L.Duriez), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU]Sciences of the Universe [physics], astrometry, dynamique orbitale, éphémérides, astrométrie, orbital dynamics
Abstract

We have developed a new dynamical model of the Galilean system fitted to astrometric observations. A numerical code has been developed for simulating the orbital motion of the satellites. Many perturbations usually neglected have been quantified, improving greatly the modeling of the system. The numerical solution has been fitted to various kinds of observations (photographic, CCD and mutual phenomena) done between 1891 and 2002. More than 2000 observations have been used, including the PHEMU campaigns of 1985 and 1991. A frequency analysis was finally used to obtain an orbital representation under an analytical form. A digital filtering treatment for removing the short periods from the long ones has been developed, hence solving some technical problems such as the length of the sample and the long solar periods. Our theory has an accuracy of a few tens of kilometres over one century and remains valid for more than 1500 years.; Nous avons élaboré une nouvelle théorie dynamique des satellites galiléens ajustée aux observations. Un programme numérique a été développé afin de pouvoir simuler le mouvement des satellites. Nous avons ainsi évalué une grande quantité de perturbations généralement négligées, et ainsi grandement amélioré la modélisation du système. La solution numérique a ensuite été ajustée à plusieurs types d'observations (photographiques, CCD et phénomènes mutuels) entre les années 1891 et 2002. Un total de plus de 2000 observations a été utilisé, dont les observations des campagnes PHEMU de 1985 et 1991. Une analyse en fréquence a finalement été effectuée dans la perspective d'obtenir une représentation sous forme analytique du système. Une méthode de filtrage pour séparer les courtes périodes des longues périodes a été développée pour résoudre des difficultés techniques (longueur d'échantillonnage, longues périodes solaires).Notre théorie a aujourd'hui une fidélité de représentation de quelques dizaines de kilomètres sur un siècle, et reste définie sur plus de 1500 ans.

Published
2002

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