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2. Osteogenic Distraction

Author

Satanin, Leonid, Salokorpi, Niina, Roginskiy, Vitaliy, Ivanov, Alexander L., Serlo, Willy, Di Rocco, Concezio, Section editor, F Di, Rocco, Section editor, Di Rocco, Concezio, editor, Pang, Dachling, editor, and Rutka, James T., editor

Published
2020
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3. The Second International Asteroid Warning Network Timing Campaign: 2005 LW3

Author

Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Alarcon, Miguel R., Bacci, Paolo, Bacci, Roberto, Bachini, Mauro, Baillie, Kevin, Baj, Giorgio, Bamberger, Daniel, Barkov, Anatoly P., Beck, Stefan, Betti, Guido, Biancalani, Enrico, Bolin, Bryce T., Briggs, David, Buzzi, Luca, Cheng, Haowen, Christensen, Eric, Coffano, Alessandro, Conversi, Luca, Demeautis, Christophe, Denneau, Larry, Desmars, Josselin, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Felber, Tobias, Flynn, Randy, Galli, Gianni, Granvik, Mikael, Gray, Bill, Gray, Zuri, Grazzini, Luca, Hasubick, Werner, Hoffmann, Tobias, Holmes, Robert, Iozzi, Marco, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jacques, Cristóvão, Jiang, Hai, Zheng, Jinghui, Kasikov, Anni, Kim, Myung-Jin, Kumar, Balaji, Lee, Hee-Jae, Li, Bin, Liu, Jing, Licandro, Javier, Linder, Tyler, Lysenkov, Vadim E., Maestripieri, Martina, Mantero, Andrea, Marinello, Vladimiro, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Neill, James D., Neue, Guenther, Novichonok, Artem O., Ocaña, Francisco, Pizzetti, Gianpaolo, Pomazan, Anton, Purdum, Josiah N., Ratinaud, Christophe, Roh, Dong-Goo, Romanov, Filipp D., Ruocco, Nello, Santana-Ros, Toni, Scarmato, Toni, Schmalz, Anastasia, Schmalz, Sergei, Serra-Ricart, Miquel, Sherrod, Clay, Sioulas, Nick, Soffiantini, Andrea, Succi, Giacomo, Tholen, David J., Thomsen, Jeppe S., Thuillot, William, Wainscoat, Richard, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Yim, Hong-Suh, Zhai, Chengxing, Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Alarcon, Miguel R., Bacci, Paolo, Bacci, Roberto, Bachini, Mauro, Baillie, Kevin, Baj, Giorgio, Bamberger, Daniel, Barkov, Anatoly P., Beck, Stefan, Betti, Guido, Biancalani, Enrico, Bolin, Bryce T., Briggs, David, Buzzi, Luca, Cheng, Haowen, Christensen, Eric, Coffano, Alessandro, Conversi, Luca, Demeautis, Christophe, Denneau, Larry, Desmars, Josselin, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Felber, Tobias, Flynn, Randy, Galli, Gianni, Granvik, Mikael, Gray, Bill, Gray, Zuri, Grazzini, Luca, Hasubick, Werner, Hoffmann, Tobias, Holmes, Robert, Iozzi, Marco, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jacques, Cristóvão, Jiang, Hai, Zheng, Jinghui, Kasikov, Anni, Kim, Myung-Jin, Kumar, Balaji, Lee, Hee-Jae, Li, Bin, Liu, Jing, Licandro, Javier, Linder, Tyler, Lysenkov, Vadim E., Maestripieri, Martina, Mantero, Andrea, Marinello, Vladimiro, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Neill, James D., Neue, Guenther, Novichonok, Artem O., Ocaña, Francisco, Pizzetti, Gianpaolo, Pomazan, Anton, Purdum, Josiah N., Ratinaud, Christophe, Roh, Dong-Goo, Romanov, Filipp D., Ruocco, Nello, Santana-Ros, Toni, Scarmato, Toni, Schmalz, Anastasia, Schmalz, Sergei, Serra-Ricart, Miquel, Sherrod, Clay, Sioulas, Nick, Soffiantini, Andrea, Succi, Giacomo, Tholen, David J., Thomsen, Jeppe S., Thuillot, William, Wainscoat, Richard, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Yim, Hong-Suh, and Zhai, Chengxing

Abstract

The Earth close approach of near-Earth asteroid 2005 LW3 on 2022 November 23 represented a good opportunity for a second observing campaign to test the timing accuracy of astrometric observation. With 82 participating stations, the International Asteroid Warning Network collected 1046 observations of 2005 LW3 around the time of the close approach. Compared to the previous timing campaign targeting 2019 XS, some individual observers were able to significantly improve the accuracy of their reported observation times. In particular, U.S. surveys achieved good timing performance. However, no broad, systematic improvement was achieved compared to the previous campaign, with an overall negative bias persisting among the different observers. The calibration of observing times and the mitigation of timing errors should be important future considerations for observers and orbit computers, respectively., Validerad;2023;Nivå 2;2023-12-12 (hanlid);For funding information see: https://doi.org/10.3847/PSJ/acfd22;Full text license: CC BY

Published
2023
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4. The Second International Asteroid Warning Network Timing Campaign: 2005 LW3

Author

Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Alarcon, Miguel R., Bacci, P., Bacci, Roberto, Bachini, M., Baillié, Kevin, Baj, Giorgio, Bamberger, Daniel, Barkov, Anatoly P., Beck, Stefan, Betti, Guido, Biancalani, Enrico, Bolin, Bryce T., Briggs, David, Buzzi, Luca, Cheng, Haowen, Christensen, Eric, Coffano, Alessandro, Conversi, Luca, Demeautis, Christophe, Denneau, Larry, Desmars, Josselin, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Felber, Tobias, Flynn, Randy, Galli, Gianni, Granvik, Mikael, Gray, Bill, Gray, Zuri, Grazzini, Luca, Hasubick, Werner, Hoffmann, Tobias, Holmes, Robert, Iozzi, Marco, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jacques, Cristóvão, Jiang, Hai, Jinghui, Zheng, Kasikov, Anni, Kim, Myung-Jin, Kumar, Balaji, Lee, Hee-Jae, Li, Bin, Liu, Jing, Licandro, Javier, Linder, Tyler, Lysenkov, Vadim E., Maestripieri, M., Mantero, Andrea, Marinello, Vladimiro, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Neill, James D., Neue, Guenther, Novichonok, Artem O., Ocaña, Francisco, Pizzetti, Gianpaolo, Pomazan, Anton, Purdum, Josiah N., Ratinaud, Christophe, Roh, Dong-Goo, Romanov, Filipp D., Ruocco, Nello, Santana-Ros, Toni, Scarmato, Toni, Schmalz, Anastasia, Schmalz, Sergei, Serra-Ricart, M., Sherrod, Clay, Sioulas, Nick, Soffiantini, Andrea, Succi, G., Tholen, David J., Thomsen, Jeppe S., Thuillot, William, Wainscoat, Richard, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Yim, Hong-Suh, Zhai, Chengxing, Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Alarcon, Miguel R., Bacci, P., Bacci, Roberto, Bachini, M., Baillié, Kevin, Baj, Giorgio, Bamberger, Daniel, Barkov, Anatoly P., Beck, Stefan, Betti, Guido, Biancalani, Enrico, Bolin, Bryce T., Briggs, David, Buzzi, Luca, Cheng, Haowen, Christensen, Eric, Coffano, Alessandro, Conversi, Luca, Demeautis, Christophe, Denneau, Larry, Desmars, Josselin, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Felber, Tobias, Flynn, Randy, Galli, Gianni, Granvik, Mikael, Gray, Bill, Gray, Zuri, Grazzini, Luca, Hasubick, Werner, Hoffmann, Tobias, Holmes, Robert, Iozzi, Marco, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jacques, Cristóvão, Jiang, Hai, Jinghui, Zheng, Kasikov, Anni, Kim, Myung-Jin, Kumar, Balaji, Lee, Hee-Jae, Li, Bin, Liu, Jing, Licandro, Javier, Linder, Tyler, Lysenkov, Vadim E., Maestripieri, M., Mantero, Andrea, Marinello, Vladimiro, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Neill, James D., Neue, Guenther, Novichonok, Artem O., Ocaña, Francisco, Pizzetti, Gianpaolo, Pomazan, Anton, Purdum, Josiah N., Ratinaud, Christophe, Roh, Dong-Goo, Romanov, Filipp D., Ruocco, Nello, Santana-Ros, Toni, Scarmato, Toni, Schmalz, Anastasia, Schmalz, Sergei, Serra-Ricart, M., Sherrod, Clay, Sioulas, Nick, Soffiantini, Andrea, Succi, G., Tholen, David J., Thomsen, Jeppe S., Thuillot, William, Wainscoat, Richard, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Yim, Hong-Suh, and Zhai, Chengxing

Abstract

The Earth close approach of near-Earth asteroid 2005 LW3 on 2022 November 23 represented a good opportunity for a second observing campaign to test the timing accuracy of astrometric observation. With 82 participating stations, the International Asteroid Warning Network collected 1046 observations of 2005 LW3 around the time of the close approach. Compared to the previous timing campaign targeting 2019 XS, some individual observers were able to significantly improve the accuracy of their reported observation times. In particular, U.S. surveys achieved good timing performance. However, no broad, systematic improvement was achieved compared to the previous campaign, with an overall negative bias persisting among the different observers. The calibration of observing times and the mitigation of timing errors should be important future considerations for observers and orbit computers, respectively.

Published
2023

6. Osteogenic Distraction

Author

Satanin, Leonid, primary, Salokorpi, Niina, additional, Roginskiy, Vitaliy, additional, Ivanov, Alexander L., additional, and Serlo, Willy, additional

Published
2017
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7. International Asteroid Warning Network Timing Campaign: 2019 XS

Author

Farnocchia, Davide, primary, Reddy, Vishnu, additional, Bauer, James M., additional, Warner, Elizabeth M., additional, Micheli, Marco, additional, Payne, Matthew J., additional, Farnham, Tony, additional, Kelley, Michael S., additional, Balam, David D., additional, Barkov, Anatoly P., additional, Berteşteanu, Daniel, additional, Birlan, Mirel, additional, Bolin, Bryce T., additional, Brucker, Melissa J., additional, Buzzi, Luca, additional, Chambers, Kenneth C., additional, Demetz, Lukas, additional, Djupvik, Anlaug A., additional, Elenin, Leonid, additional, Fini, Paolo, additional, Flynn, Randy, additional, Galli, Gianni, additional, Gao, Xing, additional, Gȩdek, Marcin, additional, Granvik, Mikael, additional, Hasubick, Werner, additional, Ivanov, Alexander L., additional, Ivanov, Viktor A., additional, Ivanova, Natalya V., additional, Jaques, Cristóvão, additional, Kasikov, Anni, additional, Kim, Myung-Jin, additional, Lane, David, additional, Lee, Hee-Jae, additional, Li, Bin, additional, Li, Fan, additional, Lister, Tim, additional, Lysenko, Vadim E., additional, Magnier, Eugene A., additional, Mahomed, Nawaz, additional, McCormick, Jennie, additional, Moon, Darrel, additional, Nastasi, Alessandro, additional, Nedelcu, Dan A., additional, Neue, Guenther, additional, Petrescu, Elisabeta, additional, Popescu, Marcel, additional, Prosperi, Enrico, additional, Reszelewski, Rafał, additional, Roh, Dong-Goo, additional, Romanov, Filipp D., additional, Santana-Ros, Toni, additional, Schmalz, Anastasia, additional, Schmalz, Sergei, additional, Scotti, James V., additional, Seaman, Robert, additional, Sioulas, Nick, additional, Sonka, Adrian B., additional, Tholen, David J., additional, Trelia, Madalina M., additional, Wainscoat, Richard, additional, Wang, Xin, additional, Wells, Guy, additional, Weryk, Robert, additional, Yakovenko, Nikolai A., additional, Ye, Quanzhi, additional, Yim, Hong-Suh, additional, Zhai, Chengxing, additional, Zhang, Chen, additional, Zhao, Haibin, additional, Zhu, Tinglei, additional, and Żołnowski, Michał, additional

Published
2022
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8. International Asteroid Warning Network Timing Campaign: 2019 XS

Author

Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Balam, David D., Barkov, Anatoly P., Berteşteanu, Daniel, Birlan, Mirel, Bolin, Bryce T., Brucker, Melissa J., Buzzi, Luca, Chambers, Kenneth C., Demetz, Lukas, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Flynn, Randy, Galli, Gianni, Gao, Xing, Gȩdek, Marcin, Granvik, Mikael, Hasubick, Werner, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jaques, Cristóvão, Kasikov, Anni, Kim, Myung-Jin, Lane, David, Lee, Hee-Jae, Li, Bin, Li, Fan, Lister, Tim, Lysenko, Vadim E., Magnier, Eugene A., Mahomed, Nawaz, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Nedelcu, Dan A., Neue, Guenther, Petrescu, Elisabeta, Popescu, Marcel, Prosperi, Enrico, Reszelewski, Rafał, Roh, Dong-Goo, Romanov, Filipp D., Santana-Ros, Toni, Schmalz, Anastasia, Schmalz, Sergei, Scotti, James V., Seaman, Robert, Sioulas, Nick, Sonka, Adrian B., Tholen, David J., Trelia, Madalina M., Wainscoat, Richard, Wang, Xin, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Ye, Quanzhi, Yim, Hong-Suh, Zhai, Chengxing, Zhang, Chen, Zhao, Haibin, Zhu, Tinglei, Żołnowski, Michał, Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Farnocchia, Davide, Reddy, Vishnu, Bauer, James M., Warner, Elizabeth M., Micheli, Marco, Payne, Matthew J., Farnham, Tony, Kelley, Michael S., Balam, David D., Barkov, Anatoly P., Berteşteanu, Daniel, Birlan, Mirel, Bolin, Bryce T., Brucker, Melissa J., Buzzi, Luca, Chambers, Kenneth C., Demetz, Lukas, Djupvik, Anlaug A., Elenin, Leonid, Fini, Paolo, Flynn, Randy, Galli, Gianni, Gao, Xing, Gȩdek, Marcin, Granvik, Mikael, Hasubick, Werner, Ivanov, Alexander L., Ivanov, Viktor A., Ivanova, Natalya V., Jaques, Cristóvão, Kasikov, Anni, Kim, Myung-Jin, Lane, David, Lee, Hee-Jae, Li, Bin, Li, Fan, Lister, Tim, Lysenko, Vadim E., Magnier, Eugene A., Mahomed, Nawaz, McCormick, Jennie, Moon, Darrel, Nastasi, Alessandro, Nedelcu, Dan A., Neue, Guenther, Petrescu, Elisabeta, Popescu, Marcel, Prosperi, Enrico, Reszelewski, Rafał, Roh, Dong-Goo, Romanov, Filipp D., Santana-Ros, Toni, Schmalz, Anastasia, Schmalz, Sergei, Scotti, James V., Seaman, Robert, Sioulas, Nick, Sonka, Adrian B., Tholen, David J., Trelia, Madalina M., Wainscoat, Richard, Wang, Xin, Wells, Guy, Weryk, Robert, Yakovenko, Nikolai A., Ye, Quanzhi, Yim, Hong-Suh, Zhai, Chengxing, Zhang, Chen, Zhao, Haibin, Zhu, Tinglei, and Żołnowski, Michał

Abstract

As part of the International Asteroid Warning Network's observational exercises, we conducted a campaign to observe near-Earth asteroid 2019 XS around its close approach to Earth on 2021 November 9. The goal of the campaign was to characterize errors in the observation times reported to the Minor Planet Center, which become an increasingly important consideration as astrometric accuracy improves and more fast-moving asteroids are observed. As part of the exercise, a total of 957 astrometric observations of 2019 XS during the encounter were reported and subsequently were analyzed to obtain the corresponding residuals. While the timing errors are typically smaller than 1 s, the reported times appear to be negatively biased, i.e., they are generally earlier than they should be. We also compared the observer-provided position uncertainty with the cross-track residuals, which are independent of timing errors. A large fraction of the estimated uncertainties appear to be optimistic, especially when <0farcs2. We compiled individual reports for each observer to help identify and remove the root cause of any possible timing error and improve the uncertainty quantification process. We suggest possible sources of timing errors and describe a simple procedure to derive reliable, conservative position uncertainties.

Published
2022

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