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1. Science Goals and Mission Architecture of the Europa Lander Mission Concept

Author

K. P. Hand, C. B. Phillips, A. Murray, J. B. Garvin, E. H. Maize, R. G. Gibbs, G. Reeves, A. M. San Martin, G. H. Tan-Wang, J. Krajewski, K. Hurst, R. Crum, B. A. Kennedy, T. P. McElrath, J. C. Gallon, D. Sabahi, S. W. Thurman, B. Goldstein, P. Estabrook, S. W. Lee, J. A. Dooley, W. B. Brinckerhoff, K. S. Edgett, C. R. German, T. M. Hoehler, S. M. Hörst, J. I. Lunine, C. Paranicas, K. Nealson, D. E. Smith, A. S. Templeton, M. J. Russell, B. Schmidt, B. Christner, B. Ehlmann, A. Hayes, A. Rhoden, P. Willis, R. A. Yingst, K. Craft, M. E. Cameron, T. Nordheim, J. Pitesky, J. Scully, J. Hofgartner, S. W. Sell, K. J. Barltrop, J. Izraelevitz, E. J. Brandon, J. Seong, J.-P. Jones, J. Pasalic, K. J. Billings, J. P. Ruiz, R. V. Bugga, D. Graham, L. A. Arenas, D. Takeyama, M. Drummond, H. Aghazarian, A. J. Andersen, K. B. Andersen, E. W. Anderson, A. Babuscia, P. G. Backes, E. S. Bailey, D. Balentine, C. G. Ballard, D. F. Berisford, P. Bhandari, K. Blackwood, G. S. Bolotin, E. A. Bovre, J. Bowkett, K. T. Boykins, M. S. Bramble, T. M. Brice, P. Briggs, A. P. Brinkman, S. M. Brooks, B. B. Buffington, B. Burns, M. L. Cable, S. Campagnola, L. A. Cangahuala, G. A Carr, J. R. Casani, N. E. Chahat, B. K. Chamberlain-Simon, Y. Cheng, S. A. Chien, B. T. Cook, M. Cooper, M. DiNicola, B. Clement, Z. Dean, E. A. Cullimore, A. G. Curtis, J-P. de la Croix, P. Di Pasquale, E. M. Dodd, L. A. Dubord, J. A. Edlund, R. Ellyin, B. Emanuel, J. T. Foster, A. J. Ganino, G. J. Garner, M. T. Gibson, M. Gildner, K. J. Glazebrook, M. E. Greco, W. M. Green, S. J. Hatch, M. M. Hetzel, W. A. Hoey, A. E. Hofmann, R. Ionasescu, A. Jain, J. D. Jasper, J. R. Johannesen, G. K. Johnson, I. Jun, A. B. Katake, S. Y. Kim-Castet, D. I. Kim, W. Kim, E. F. Klonicki, B. Kobeissi, B. D. Kobie, J. Kochocki, M. Kokorowski, J. A. Kosberg, K. Kriechbaum, T. P. Kulkarni, R. L. Lam, D. F. Landau, M. A. Lattimore, S. L. Laubach, C. R. Lawler, G. Lim, J. Y Lin, T. E. Litwin, M. W. Lo, C. A. Logan, E. Maghasoudi, L. Mandrake, Y. Marchetti, E. Marteau, K. A. Maxwell, J. B. Mc Namee, O. Mcintyre, M. Meacham, J. P. Melko, J. Mueller, D. A. Muliere, A. Mysore, J. Nash, H. Ono, J. M. Parker, R. C. Perkins, A. E Petropoulos, A. Gaut, M. Y. Piette Gomez, R. P. Casillas, M. Preudhomme, G. Pyrzak, J. Rapinchuk, J. M. Ratliff, T. L. Ray, E. T. Roberts, K. Roffo, D. C. Roth, J. A. Russino, T. M. Schmidt, M. J. Schoppers, J. S. Senent, F. Serricchio, D. J. Sheldon, L. R. Shiraishi, J. Shirvanian, K. J. Siegel, G. Singh, A. R. Sirota, E. D. Skulsky, J. S. Stehly, N. J. Strange, S. U. Stevens, E. T. Sunada, S. P. Tepsuporn, L. P. C. Tosi, N. Trawny, I. Uchenik, V. Verma, R. A. Volpe, C. T. Wagner, D. Wang, R. G. Willson, J. L. Wolff, A. T. Wong, A. K. Zimmer, K. G. Sukhatme, K. A. Bago, Y. Chen, A. M. Deardorff, R. S. Kuch, C. Lim, M. L. Syvertson, G. A. Arakaki, A. Avila, K. J. DeBruin, A. Frick, J. R. Harris, M. C. Heverly, J. M. Kawata, S.-K. Kim, D. M. Kipp, J. Murphy, M. W. Smith, M. D. Spaulding, R. Thakker, N. Z. Warner, C. R. Yahnker, M. E. Young, T. Magner, D. Adams, P. Bedini, L. Mehr, C. Sheldon, S. Vernon, V. Bailey, M. Briere, M. Butler, A. Davis, S. Ensor, M. Gannon, A. Haapala-Chalk, T. Hartka, M. Holdridge, A. Hong, J. Hunt, J. Iskow, F. Kahler, K. Murray, D. Napolillo, M. Norkus, R. Pfisterer, J. Porter, D. Roth, P. Schwartz, L. Wolfarth, E. H. Cardiff, E. W. Grob, J. R. Adam, E. Betts, J. Norwood, M. M. Heller, T. Voskuilen, P. Sakievich, L. Gray, D. J. Hansen, K. W. Irick, J. C. Hewson, J. Lamb, S. C. Stacy, C. M. Brotherton, A. S Tappan, D. Benally, H. Thigpen, E. Ortiz, D. Sandoval, A. M. Ison, M. Warren, P. G. Stromberg, P. M. Thelen, B. Blasy, P. Nandy, A. W. Haddad, L. B. Trujillo, T. H. Wiseley, S. A. Bell, N. P. Teske, C. Post, L. Torres-Castro, C. Grosso, and M. Wasiolek

Published
2022
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2. Science Goals and Mission Architecture of the Europa Lander Mission Concept

Author

K. P. Hand, C. B. Phillips, A. Murray, J. B. Garvin, E. H. Maize, R. G. Gibbs, G. Reeves, A. M. San Martin, G. H. Tan-Wang, J. Krajewski, K. Hurst, R. Crum, B. A. Kennedy, T. P. McElrath, J. C. Gallon, D. Sabahi, S. W. Thurman, B. Goldstein, P. Estabrook, S. W. Lee, J. A. Dooley, W. B. Brinckerhoff, K. S. Edgett, C. R. German, T. M. Hoehler, S. M. Hörst, J. I. Lunine, C. Paranicas, K. Nealson, D. E. Smith, A. S. Templeton, M. J. Russell, B. Schmidt, B. Christner, B. Ehlmann, A. Hayes, A. Rhoden, P. Willis, R. A. Yingst, K. Craft, M. E. Cameron, T. Nordheim, J. Pitesky, J. Scully, J. Hofgartner, S. W. Sell, K. J. Barltrop, J. Izraelevitz, E. J. Brandon, J. Seong, J.-P. Jones, J. Pasalic, K. J. Billings, J. P. Ruiz, R. V. Bugga, D. Graham, L. A. Arenas, D. Takeyama, M. Drummond, H. Aghazarian, A. J. Andersen, K. B. Andersen, E. W. Anderson, A. Babuscia, P. G. Backes, E. S. Bailey, D. Balentine, C. G. Ballard, D. F. Berisford, P. Bhandari, K. Blackwood, G. S. Bolotin, E. A. Bovre, J. Bowkett, K. T. Boykins, M. S. Bramble, T. M. Brice, P. Briggs, A. P. Brinkman, S. M. Brooks, B. B. Buffington, B. Burns, M. L. Cable, S. Campagnola, L. A. Cangahuala, G. A Carr, J. R. Casani, N. E. Chahat, B. K. Chamberlain-Simon, Y. Cheng, S. A. Chien, B. T. Cook, M. Cooper, M. DiNicola, B. Clement, Z. Dean, E. A. Cullimore, A. G. Curtis, J-P. de la Croix, P. Di Pasquale, E. M. Dodd, L. A. Dubord, J. A. Edlund, R. Ellyin, B. Emanuel, J. T. Foster, A. J. Ganino, G. J. Garner, M. T. Gibson, M. Gildner, K. J. Glazebrook, M. E. Greco, W. M. Green, S. J. Hatch, M. M. Hetzel, W. A. Hoey, A. E. Hofmann, R. Ionasescu, A. Jain, J. D. Jasper, J. R. Johannesen, G. K. Johnson, I. Jun, A. B. Katake, S. Y. Kim-Castet, D. I. Kim, W. Kim, E. F. Klonicki, B. Kobeissi, B. D. Kobie, J. Kochocki, M. Kokorowski, J. A. Kosberg, K. Kriechbaum, T. P. Kulkarni, R. L. Lam, D. F. Landau, M. A. Lattimore, S. L. Laubach, C. R. Lawler, G. Lim, J. Y Lin, T. E. Litwin, M. W. Lo, C. A. Logan, E. Maghasoudi, L. Mandrake, Y. Marchetti, E. Marteau, K. A. Maxwell, J. B. Mc Namee, O. Mcintyre, M. Meacham, J. P. Melko, J. Mueller, D. A. Muliere, A. Mysore, J. Nash, H. Ono, J. M. Parker, R. C. Perkins, A. E Petropoulos, A. Gaut, M. Y. Piette Gomez, R. P. Casillas, M. Preudhomme, G. Pyrzak, J. Rapinchuk, J. M. Ratliff, T. L. Ray, E. T. Roberts, K. Roffo, D. C. Roth, J. A. Russino, T. M. Schmidt, M. J. Schoppers, J. S. Senent, F. Serricchio, D. J. Sheldon, L. R. Shiraishi, J. Shirvanian, K. J. Siegel, G. Singh, A. R. Sirota, E. D. Skulsky, J. S. Stehly, N. J. Strange, S. U. Stevens, E. T. Sunada, S. P. Tepsuporn, L. P. C. Tosi, N. Trawny, I. Uchenik, V. Verma, R. A. Volpe, C. T. Wagner, D. Wang, R. G. Willson, J. L. Wolff, A. T. Wong, A. K. Zimmer, K. G. Sukhatme, K. A. Bago, Y. Chen, A. M. Deardorff, R. S. Kuch, C. Lim, M. L. Syvertson, G. A. Arakaki, A. Avila, K. J. DeBruin, A. Frick, J. R. Harris, M. C. Heverly, J. M. Kawata, S.-K. Kim, D. M. Kipp, J. Murphy, M. W. Smith, M. D. Spaulding, R. Thakker, N. Z. Warner, C. R. Yahnker, M. E. Young, T. Magner, D. Adams, P. Bedini, L. Mehr, C. Sheldon, S. Vernon, V. Bailey, M. Briere, M. Butler, A. Davis, S. Ensor, M. Gannon, A. Haapala-Chalk, T. Hartka, M. Holdridge, A. Hong, J. Hunt, J. Iskow, F. Kahler, K. Murray, D. Napolillo, M. Norkus, R. Pfisterer, J. Porter, D. Roth, P. Schwartz, L. Wolfarth, E. H. Cardiff, E. W. Grob, J. R. Adam, E. Betts, J. Norwood, M. M. Heller, T. Voskuilen, P. Sakievich, L. Gray, D. J. Hansen, K. W. Irick, J. C. Hewson, J. Lamb, S. C. Stacy, C. M. Brotherton, A. S Tappan, D. Benally, H. Thigpen, E. Ortiz, D. Sandoval, A. M. Ison, M. Warren, P. G. Stromberg, P. M. Thelen, B. Blasy, P. Nandy, A. W. Haddad, L. B. Trujillo, T. H. Wiseley, S. A. Bell, N. P. Teske, C. Post, L. Torres-Castro, C. Grosso, and M. Wasiolek

Subjects
Geophysics, Space and Planetary Science, Earth and Planetary Sciences (miscellaneous), Astronomy and Astrophysics
Abstract

Europa is a premier target for advancing both planetary science and astrobiology, as well as for opening a new window into the burgeoning field of comparative oceanography. The potentially habitable subsurface ocean of Europa may harbor life, and the globally young and comparatively thin ice shell of Europa may contain biosignatures that are readily accessible to a surface lander. Europa’s icy shell also offers the opportunity to study tectonics and geologic cycles across a range of mechanisms and compositions. Here we detail the goals and mission architecture of the Europa Lander mission concept, as developed from 2015 through 2020. The science was developed by the 2016 Europa Lander Science Definition Team (SDT), and the mission architecture was developed by the preproject engineering team, in close collaboration with the SDT. In 2017 and 2018, the mission concept passed its mission concept review and delta-mission concept review, respectively. Since that time, the preproject has been advancing the technologies, and developing the hardware and software, needed to retire risks associated with technology, science, cost, and schedule.

Published
2022

3. MWR: Microwave Radiometer for the Juno Mission to Jupiter

Author

J. G. Kempenaar, R. Williamson, M. S. Zawadski, J. K. Arballo, Neil Chamberlain, Behrouz Khayatian, T. C. Owen, B. R. Franklin, Paul G. Steffes, R. C. Hughes, M. A. Janssen, Sushil K. Atreya, Amadeo Bellotti, Jonathan I. Lunine, Richard Hodges, C. C. Wang, Scott Bolton, Sidharth Misra, Steven Levin, Andrew P. Ingersoll, Samuel Gulkis, Liming Li, K. A. Lee, Glenn S. Orton, E. Sarkissian, A. Ulloa-Severino, V. Vorperion, A. S. Sahakian, J. C. Chen, L. A. Jewell, P. J. Pingree, Henry A. Conley, Daniel Santos-Costa, D. Gautier, Michael Allison, Shannon Brown, Fabiano Oyafuso, M. S. Loo, Cheng Li, Douglas Dawson, F. Maiwald, J. E. Oswald, Damon Russell, William Hatch, E. T. Sunada, Virgil Adumitroaie, Richard Redick, A. S. Mazer, G. Bedrosian, and Amarit Kitiyakara

Subjects
Physics, 010504 meteorology & atmospheric sciences, Microwave radiometer, Atmosphere of Jupiter, Astronomy and Astrophysics, 01 natural sciences, Jovian, Jupiter, Atmosphere, Exploration of Jupiter, Space and Planetary Science, Brightness temperature, Physics::Space Physics, 0103 physical sciences, Astrophysics::Earth and Planetary Astrophysics, Orbit insertion, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Remote sensing
Abstract

The Juno Microwave Radiometer (MWR) is a six-frequency scientific instrument designed and built to investigate the deep atmosphere of Jupiter. It is one of a suite of instruments on NASA’s New Frontiers Mission Juno launched to Jupiter on August 5, 2011. The focus of this paper is the description of the scientific objectives of the MWR investigation along with the experimental design, observational approach, and calibration that will achieve these objectives, based on the Juno mission plan up to Jupiter orbit insertion on July 4, 2016. With frequencies distributed approximately by octave from 600 MHz to 22 GHz, the MWR will sample the atmospheric thermal radiation from depths extending from the ammonia cloud region at around 1 bar to pressure levels as deep as 1000 bars. The primary scientific objectives of the MWR investigation are to determine the presently unknown dynamical properties of Jupiter’s subcloud atmosphere and to determine the global abundance of oxygen and nitrogen, present in the atmosphere as water and ammonia deep below their respective cloud decks. The MWR experiment is designed to measure both the thermal radiation from Jupiter and its emission-angle dependence at each frequency relative to the atmospheric local normal with high accuracy. The antennas at the four highest frequencies (21.9, 10.0, 5.2, and 2.6 GHz) have ∼12° beamwidths and will achieve a spatial resolution approaching 600 km near perijove. The antennas at the lowest frequencies (0.6 and 1.25 GHz) are constrained by physical size limitations and have 20° beamwidths, enabling a spatial resolution of as high as 1000 km to be obtained. The MWR will obtain Jupiter’s brightness temperature and its emission-angle dependence at each point along the subspacecraft track, over angles up to 60° from the normal over most latitudes, during at least six perijove passes after orbit insertion. The emission-angle dependence will be obtained for all frequencies to an accuracy of better than one part in 10^3, sufficient to detect small variations in atmospheric temperature and absorber concentration profiles that distinguish dynamical and compositional properties of the deep Jovian atmosphere.

Published
2017

4. MWR: Microwave Radiometer for the Juno Mission to Jupiter

Author

M. A. Janssen, J. E. Oswald, S. T. Brown, S. Gulkis, S. M. Levin, S. J. Bolton, M. D. Allison, S. K. Atreya, D. Gautier, A. P. Ingersoll, J. I. Lunine, G. S. Orton, T. C. Owen, P. G. Steffes, V. Adumitroaie, A. Bellotti, L. A. Jewell, C. Li, L. Li, S. Misra, F. A. Oyafuso, D. Santos-Costa, E. Sarkissian, R. Williamson, J. K. Arballo, A. Kitiyakara, A. Ulloa-Severino, J. C. Chen, F. W. Maiwald, A. S. Sahakian, P. J. Pingree, K. A. Lee, A. S. Mazer, R. Redick, R. E. Hodges, R. C. Hughes, G. Bedrosian, D. E. Dawson, W. A. Hatch, D. S. Russell, N. F. Chamberlain, M. S. Zawadski, B. Khayatian, B. R. Franklin, H. A. Conley, J. G. Kempenaar, M. S. Loo, E. T. Sunada, V. Vorperion, and C. C. Wang

Published
2017

5. Wide Field Infrared Survey Telescope [WFIRST]: telescope design and simulated performance

Author

R. Goullioud, D. A. Content, G. M. Kuan, J. D. Moore, Z. Chang, E. T. Sunada, J. Villalvazo, J. P. Hawk, N. V. Armani, E. L. Johnson, and C. A. Powell

Subjects
Physics, Payload, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Three-mirror anastigmat, Astrophysics::Cosmology and Extragalactic Astrophysics, Gravitational microlensing, Exoplanet, law.invention, Telescope, Spitzer Space Telescope, law, Joint Dark Energy Mission, Astrophysics::Earth and Planetary Astrophysics, Remote sensing, Wide Field Infrared Survey Telescope
Abstract

The Wide Field Infrared Survey Telescope (WFIRST) mission concept was ranked first in new space astrophysics missions by the Astro2010 Decadal Survey, incorporating the Joint Dark Energy Mission payload concept and multiple science white papers. This mission is based on a space telescope at L2 studying exoplanets [via gravitational microlensing], probing dark energy, and surveying the near infrared sky. Since the release of the Astro2010 Decadal Survey, the team has been working with the WFIRST Science Definition Team to refine mission and payload concepts. We present the current interim reference mission point design of the payload, based on the use of a 1.3m unobscured aperture three mirror anastigmat form, with focal imaging and slit-less spectroscopy science channels. We also present the first results of Structural/Thermal/Optical performance modeling of the telescope point design.

Published
2012

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