Sander Johannes Goossens

Sander Johannes Goossens

  • ASSOCIATE RESEARCH SCIENTIST
  • 301.614.6499
  • NASA/GSFC
  • Mail Code: 698
  • Greenbelt , MD 20771
  • Employer: UNIVERSITY OF MARYLAND BALTIMORE CO
  • Brief Bio

    Sander Goossens received his PhD in 2005 from Delft University of Technology, Faculty of Aerospace Engineering in the Netherlands. From 2005-2011 he worked at the National Astronomical Observatory in Japan on the SELenological and ENgineering Explorer (SELENE) mission (also called Kaguya). He was involved in the determination of the gravity field of the Moon using the first-ever farside data (combined with available historical lunar tracking data), and in the determination of the topography of the Moon using laser altimeter data.

    In 2011 he joined the Planetary Geodynamics group (now: Planetary Geology, Geophysics, and Geochemistry Laboratory) at Goddard as a scientist with the Center for Research and Exploration in Space Science & Technology/University of Maryland Baltimore County. At Goddard, he has extensively worked on gravity field determination of various terrestrial planets: the Moon using GRAIL data, Mercury using MESSENGER data, Mars using a combination of MGS, Odyssey, and MRO data, and Venus using Magellan and Venus Express data. These results have been used to infer models of the interior structure of the planets.

    Recent highlights include:

    • the development of a constraint method using topography information that allows for the direct determination of the bulk crustal density from tracking data. This was verified with pre-GRAIL data, where the same result for the bulk crustal density as GRAIL was found. This was then applied to Mars and showed indications that Mars' bulk crustal density is lower than assumed.
    • the determination of  a degree and order 1200 (4.5 km by 4.5 km at the equator) lunar gravity model from GRAIL data. This model also applied the new constraint, resulting in high correlations between gravity and topography over the entire spectrum (by design). The resulting effective density spectrum, a measure of density of the (upper) crust at various spatial scales, is also stable over the entire degree range. This model was then used to map the vertical and lateral density variations in the Moon's crust at high resolution.
    • the development of gravity analysis methods based on line-of-sight accelerations. This was applied to MESSENGER data and has resulted in gravity models for Mercury that have improved (local) correlations with topography, from which properties of the lithosphere can be estimated.
    • using laser altimetry as a measurement type in the orbit determination of Kaguya. A determination of Kaguya's orbit with this new measurement type, and with GRAIL gravity models, has improved the orbit precision from a level of several kilometers to a level of several tens of meters. This results in better geolocation of the entire Kaguya extended mission data set.

    Currently, he is working with MESSENGER data for Mercury gravity field determination, analysis of GRAIL data to determine the deep interior structure of the Moon, and Cassini data to determine the gravity field of Saturn's moons Titan and Enceladus. He is also participating in the analysis of data from OSIRIS-REx.

    Research Interests

    Planetary geodesy

    Determining the gravity field and shape of planetary bodies, using spacecraft data such as tracking, altimetry, and image data.

    Precision orbit determination of planetary spacecraft

    Determine the orbits of planetary spacecraft with high precision using radiometric tracking, altimetry, and image data, for the purpose of reconstructing trajectories, and for determining geophysical parameters (such as the gravity field, shape, and interior structure parameters of the body).

    Interior structure modeling

    Determination of interior structure parameters such as core size and composition, density profiles, and crustal structure (density, thickness), from geodetic measurements such as the gravity field, topography, moments of inertia, and Love numbers.

    Current Projects

    GRAIL

    Analysis of the GRAIL tracking data, consisting of inter-satellite Ka-band tracking data and conventional Doppler data from the Deep Space Network. Analysis of these data have resulted in the highest resolution planetary gravity field using satellite data only. My interest covers both conventional global gravity field determination, and local techniques.

    MESSENGER

    Analysis of radiometric tracking data and altimetry for gravity field determination, with a special focus on localized representations to determine properties of Mercury's lithosphere.

    OSIRIS-REx

    Providing support for the radio science team at NASA/GSFC, focusing on OSIRIS-REx orbit determination, gravity field determination, and evaluation of shape models.

    Venus

    Analysis of historic Magellan data together with recent Venus Express (ESA) data for high-resolution gravity field determination of Venus.

    Positions/Employment

    12/2015 - Present

    Associate Research Scientist

    University of Maryland, Baltimore County, NASA/GSFC Planetary Geodynamics Laboratory, Greenbelt MD
    8/2011 - 12/2015

    Assistant Research Scientist

    University of Maryland Baltimore County, NASA/GSFC Planetary Geodynamics Laboratory, Greenbelt MD
    6/2007 - 7/2011

    Researcher

    National Astronomical Observatory of Japan, Mizusawa, Oshu, Japan
    6/2005 - 6/2007

    Postdoctoral fellowship with the Japan Society for the Promotion of Science

    National Astronomical Observatory of Japan, Mizusawa, Oshu, Japan

    Education

    Ph.D. 2005 Delft University of Technology, The Netherlands, Faculty of Aerospace Engineering. Supervisors B.A.C. Ambrosius and P.N.A.M. Visser, "The Near Side - Regional Lunar Gravity Field Determination"

    M.Sc. 1999 Delft University of Technology, The Netherlands, Faculty of Aerospace Engineering, Cum Laude, "Long-term Low Lunar Orbit Perturbations Due to the Selenopotential and Solar Radiation Pressure"

    Professional Societies

    American Geophysical Union, 2002 - Present

    Professional Service

    Member of NASA Advisory Committee “Mapping and Planetary Spatial Infrastructure Team'' (MAPSIT), 2019-present.

    Convener of Planetary Geodesy session at AGU Fall Meeting in 2011, 2015, and 2017.

    Reviewer for many journals, and several funding organisations.

    Awards

    Listed as an outstanding reviewer for AGU's Journal of Geophysical Research: Planets, 2019. (link)

    The NASA Group Achievement Award for MESSENGER, in 2018.

    The NASA Early Career Public Achievement Medal, in May 2016.

    The 2014 Robert H. Goddard Science Exceptional Achievement Award, awarded to the GRAIL Gravity Team at Goddard Space Flight Center.

    The 2010 Tsuboi Group Prize of the Geodetic Society of Japan, awarded to the RISE Project for Contributions to Lunar Geodesy in the SELENE Project.

    Both a short-term and a post-doctoral fellowship with the Japan Society for the Promotion of Science.

     

    Grants

    10/01/2019 - 09/30/2024 NNH18ZDA018C: SSERVI CAN-3, NASA

    Geophysical Exploration Of the Dynamics and Evolution of the Solar System (GEODES)

    ; Co-I
    06/01/2018 - 06/01/2021 NNH17ZDA001N-CDAP , NASA

    Interior Structure of Saturn's Moons from Cassini Tracking Data

    ; PI
    04/01/2018 - 04/01/2021 NNH17ZDA001N-PDART , NASA

    Kaguya Orbital and Geometric Restoration

    ; Co-I
    10/01/2017 - 10/01/2020 NNH16ZDA001N-LDAP , NASA

    The Deep Lunar Interior From Multi-Satellite Data Analysis

    ; PI
    09/01/2017 - 09/01/2020 NNH16ZDA001N-DDAP , NASA

    Geophysical Properties of Mercury's Crust and Lithosphere From MESSENGER Tracking Data

    ; PI
    05/01/2015 - 04/30/2020 NNH14ZDA001N-PDART , NASA

    Localized analysis of GRAIL data for high-resolution gravity field determination

    ; PI
    07/10/2014 - NNH13ZDA001N-PMDAP , NASA

     Analysis of Magellan and Venus Express satellite tracking data for high-resolution gravity field determination

    ; PI

    Other Professional Information

    Publons: http://www.researcherid.com/rid/K-2526-2015

    ORCID: http://orcid.org/0000-0002-7707-1128

    Selected Publications

    Refereed

    Goossens, S. J., T. J. Sabaka, M. A. Wieczorek, et al. G. A. Neumann, E. Mazarico, F. G. Lemoine, J. B. Nicholas, D. E. Smith, and M. T. Zuber. 2020. "High-resolution gravity field models from GRAIL data and implications for models of the density structure of the Moon’s crust." Journal of Geophysical Research: Planets, 125 (2): [10.1029/2019JE006086]

    Goossens, S. J., E. Mazarico, Y. Ishihara, B. Archinal, and L. Gaddis. 2020. "Improving the geometry of Kaguya extended mission data through refined orbit determination using laser altimetry." Icarus, 336: [10.1016/j.icarus.2019.113454]

    Genova, A., S. Goossens, E. Mazarico, et al. F. G. Lemoine, G. A. Neumann, W. Kuang, T. J. Sabaka, S. A. Hauck, II, D. E. Smith, S. C. Solomon, and M. T. Zuber. 2019. "Geodetic evidence that Mercury has a solid inner core." Geophysical Research Letters, 46 (7): 3625-3633 [Full Text (Link)] [10.1029/2018gl081135]

    Mazarico, E., G. A. Neumann, M. K. Barker, et al. S. J. Goossens, D. E. Smith, and M. T. Zuber. 2018. "Orbit determination of the Lunar Reconnaissance Orbiter: Status after Seven Years." Planetary and Space Science, 162: 2-19 [Full Text (Link)] [10.1016/j.pss.2017.10.004]

    Genova, A., E. Mazarico, S. J. Goossens, et al. F. G. Lemoine, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2018. "Solar System Expansion and Strong Equivalence Principle as seen by the NASA MESSENGER mission." Nature Communications, 9: 289 [Full Text (Link)] [10.1038/s41467-017-02558-1]

    Goossens, S. J., T. J. Sabaka, A. Genova, et al. E. Mazarico, J. B. Nicholas, and G. A. Neumann. 2017. "Evidence for a Low Bulk Crustal Density for Mars from Gravity and Topography." Geophysical Research Letters, 44 (15): 7686–7694 [Full Text (Link)] [10.1002/2017GL074172]

    Jansen, J., J. Andrews-Hanna, Y. Li, et al. P. Lucey, G. Taylor, S. Goossens, F. Lemoine, E. Mazarico, J. Head, C. Milbury, W. Kiefer, J. Soderblom, and M. Zuber. 2017. "Small-scale density variations in the lunar crust revealed by GRAIL." Icarus, 291: 107-123 [10.1016/j.icarus.2017.03.017]

    Smith, D. E., M. T. Zuber, G. A. Neumann, et al. E. Mazarico, F. G. Lemoine, J. W. Head, P. G. Lucey, O. Aharonson, M. S. Robinson, X. Sun, M. H. Torrence, M. K. Barker, J. Oberst, T. C. Duxbury, D. Mao, O. S. Barnouin, K. Jha, D. D. Rowlands, S. Goossens, D. M. Hollibaugh Baker, S. Bauer, P. Gläser, M. Lemelin, M. Rosenburg, M. M. Sori, J. Whitten, and T. Mcclanahan. 2017. "Summary of the Results from the Lunar Orbiter Laser Altimeter after Seven Years in Lunar Orbit." Icarus, 283: 70-91 [10.1016/j.icarus.2016.06.006]

    Zuber, M. T., D. E. Smith, G. A. Neumann, et al. S. Goossens, J. C. Andrews-Hanna, J. W. Head, W. S. Kiefer, S. W. Asmar, A. S. Konopliv, F. G. Lemoine, I. Matsuyama, H. J. Melosh, P. J. McGovern, F. Nimmo, R. J. Phillips, S. C. Solomon, G. J. Taylor, M. M. Watkins, M. A. Wieczorek, J. G. Williams, J. C. Jansen, B. C. Johnson, J. T. Keane, E. Mazarico, K. Miljkovi, R. S. Park, J. M. Soderblom, and D.-N. Yuan. 2016. "Gravity field of the Orientale basin from the Gravity Recovery and Interior Laboratory Mission." Science, 354 (6311): 438-441 [10.1126/science.aag0519]

    Harada, Y., S. Goossens, K. Matsumoto, et al. J. Yan, J. Ping, H. Noda, and J. Haruyama. 2016. "The deep lunar interior with a low-viscosity zone: Revised constraints from recent geodetic parameters on the tidal response of the Moon." Icarus, 276: 96-101 [10.1016/j.icarus.2016.04.021]

    Genova, A., S. Goossens, F. G. Lemoine, et al. E. Mazarico, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2016. "Seasonal and static gravity field of Mars from MGS, Mars Odyssey and MRO radio science." Icarus, 272: 228-245 [10.1016/j.icarus.2016.02.050]

    Neumann, G. A., M. T. Zuber, M. A. Wieczorek, et al. J. W. Head, D. M. Baker, S. C. Solomon, D. E. Smith, F. G. Lemoine, E. Mazarico, T. J. Sabaka, S. J. Goossens, H. J. Melosh, R. J. Phillips, S. W. Asmar, A. S. Konopliv, J. G. Williams, M. M. Sori, J. M. Soderblom, K. Miljkovic, J. C. Andrews-Hanna, F. Nimmo, and W. S. Kiefer. 2015. "Lunar impact basins revealed by Gravity Recovery and Interior Laboratory measurements." Science Advances, 1 (9): e1500852-e1500852 [Full Text (Link)] [10.1126/sciadv.1500852]

    Genova, A., S. J. Goossens, F. G. Lemoine, et al. E. Mazarico, S. K. Fricke, D. E. Smith, and M. T. Zuber. 2015. "Long-term variability of CO2 and O in the Mars upper atmosphere from MRO radio science data." J. Geophys. Res.-Planets, 120 (5): 849-868 [10.1002/2014JE004770]

    Mazarico, E., A. Genova, S. J. Goossens, et al. F. G. Lemoine, G. A. Neumann, D. E. Smith, M. T. Zuber, and S. C. Solomon. 2014. "The Gravity Field, Orientation, and Ephemeris of Mercury from MESSENGER Observations after Three Years in Orbit." J. Geophysical Res.-Planets, 119: 2417–2436 [10.1002/2014JE004675]

    Harada, Y., S. J. Goossens, K. Matsumoto, et al. J. Yan, J. Ping, H. Noda, and J. Haruyama. 2014. "Strong tidal heating in an ultralow-viscosity zone at the core-mantle boundary of the Moon." Nature Geoscience, 7: 569-572 [doi:10.1038/ngeo2211]

    Williams, J. G., A. S. Konopliv, D. H. Boggs, et al. R. S. Park, D.-N. Yuan, F. G. Lemoine, S. J. Goossens, E. Mazarico, F. Nimmo, R. C. Weber, S. W. Asmar, H. J. Melosh, G. A. Neumann, R. J. Phillips, D. E. Smith, S. C. Solomon, M. M. Watkins, M. A. Wieczorek, J. C. Andrews-Hanna, J. W. Head, W. S. Kiefer, I. Matsuyama, P. J. McGovern, G. J. Taylor, and M. T. Zuber. 2014. "Lunar interior properties from the GRAIL mission." J. Geophys. Res.-Planets, [10.1002/2013JE004559]

    Goossens, S. J., T. J. Sabaka, J. B. Nicholas, et al. F. G. Lemoine, D. D. Rowlands, E. Mazarico, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2014. "High-resolution local gravity model of the south pole of the Moon from GRAIL extended mission data." Geophys. Res. Lett., 41 (10): 3367-3374 [Full Text (Link)] [10.1002/2014GL060178]

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2014. "GRGM900C: A degree-900 lunar gravity model from GRAIL primary and extended mission data." Geophys. Res. Lett., 41 (10): 3382-3389 [Full Text (Link)] [10.1002/2014GL060027]

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. M. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, D. S. Caprette, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2013. "High-degree gravity models from GRAIL primary mission data." J. Geophys. Res.-Planets, 118: 1676-1698 [10.1002/jgre.20118]

    Zuber, M. T., D. E. Smith, M. M. Watkins, et al. S. W. Asmar, A. S. Konopoliv, F. G. Lemoine, H. J. Melosh, R. J. Phillips, G. A. Neumann, S. C. Solomon, M. A. Wieczorek, J. G. Williams, S. J. Goossens, G. Kruizinga, E. M. Mazarico, R. S. Park, and D. Yuan. 2012. "Gravity field of the Moon from the Gravity Recovery and Interior Laboratory (GRAIL) Mission." Science, 339 (6120): 668-671 [Full Text (Link)] [10.1126/science.1231507]

    Smith, D. E., M. T. Zuber, R. Phillips, et al. S. Solomon, S. Hauck, F. G. Lemoine, E. M. Mazarico, G. A. Neumann, S. Peale, J. Margot, C. C. Johnson, M. H. Torrence, M. E. Perry, D. D. Rowlands, S. J. Goossens, J. Head, and A. Taylor. 2012. "Gravity Field and Internal Structure of Mercury from MESSENGER ." Science, 336 (6078): 214-217 [Full Text (Link)] [ 10.1126/science.1218809]

    Goossens, S. J., Y. Ishihara, K. Matsumoto, and S. Sasaki. 2012. "Local lunar gravity field analysis over the South Pole-Aitken basin from SELENE farside tracking data." Journal of Geophysical Research Planets, 117: [10.1029/2011JE003831]

    Liu, Q., K. Matsumoto, T. Iwata, et al. N. Namiki, H. Noda, H. Hanada, Y. Ishihara, S. J. Goossens, F. Kikuchi, K. Asari, S. Tsuruta, T. Ishikawa, S. Sasaki, and T. Takano. 2011. "Effect of Phase Pattern of Antennas Onboard Flying Spin Satellites on Doppler Measurements ." IEEE Transactions on Aerospace and Electronic Systems, 47 (1): 405-419 [10.1109/TAES.2011.5705683]

    Fok, H. S., C. K. Shum, Y. Yi, et al. H. Araki, J. Ping, J. G. Williams, G. Fotopoulos, H. Noda, S. Goossens, Q. Huang, Y. Ishihara, K. Matsumoto, J. Oberst, and S. Sasaki. 2011. "Accuracy Assessment of Lunar Topography Models, Earth, Planets and Space." Earth Planets and Space , 63: 15-23 [ 10.5047/eps.2010.08.005]

    Ishihara, Y., T. Morota, R. Nakamura, S. Goossens, and S. Sasaki. 2011. "Anomalous Moscoviense Basin: Single Oblique Impact or Double Impact Origin?" Geophysical Research Letters, 38: L03201 [ 10.1029/2010GL045887]

    Goossens, S. J., K. Matsumoto, D. D. Rowlands, et al. F. G. Lemoine, H. Noda, and H. Araki. 2011. "Orbit determination of the SELENE satellites using multi-satellite data types and evaluation of SELENE gravity field models." J. Geodesy, 85: 487-504 [10.1007/s00190-011-0446-2]

    Goossens, S. J., K. Matsumoto, Q. Liu, et al. F. Kikuchi, K. Sato, H. Hanada, Y. Ishihara, H. Noda, N. Kawano, N. Namiki, T. Iwata, F. G. Lemoine, D. D. Rowlands, Y. Harada, and M. Chen. 2011. "Lunar gravity field determination using SELENE same-beam differential VLBI tracking data." J. Geodesy, 85 (4): 205-228 [Full Text (Link)] [10.1007/s00190-010-0430-2]

    Goossens, S. J. 2010. "Applying spectral leakage corrections to gravity field determination from satellite tracking data." Geophysical Journal International, 181 (3): 1459-1472 [10.1111/j.1365-246X.2010.04585.x]

    Matsumoto, K., S. J. Goossens, Y. Ishihara, et al. Q. Liu, F. Kikuchi, T. Iwata, N. Namiki, H. Noda, H. Hanada, N. Kawano, F. G. Lemoine, and D. D. Rowlands. 2010. "An improved lunar gravity field model from SELENE and historical tracking data: Revealing the farside gravity features." J. Geophys. Res.-Planets, 115: E06007 [Full Text (Link)] [10.1029/2009JE003499]

    Araki, H., S. Tazawa, H. Noda, et al. Y. Ishihara, S. J. Goossens, S. Sasaki, N. Kawano, I. Kamiya, H. Otake, J. Oberst, and C. Shum. 2009. "Lunar global shape and polar topography derived from KAGUYA-LALT laser altimetry." Science, 323: 897-900 [doi:10.1126/science.1164146]

    Namiki, N., T. Iwata, K. Matsumoto, et al. H. Hanada, H. Noda, S. J. Goossens, M. Ogawa, N. Kawano, K. Asari, S. Tsuruta, Y. Ishihara, Q. Liu, F. Kikuchi, T. Ishikawa, S. Sasaki, and C. Aoshima. 2009. "Farside gravity field of the Moon from four-way Doppler measurements of SELENE (Kaguya)." Science, 323: 900-905 [doi:10.1126/science.1168029]

    Goossens, S. J., and K. Matsumoto. 2008. "Lunar degree 2 potential Love number determination from satellite tracking data." Geophys. Res. Lett., 35: [doi:10.1029/2007GL031960]

    Noda, H., H. Araki, S. J. Goossens, et al. Y. Ishihara, K. Matsumoto, S. Tazawa, N. Kawano, and S. Sasaki. 2008. "Illumination conditions at the lunar polar regions by KAGUYA (SELENE) laser altimeter." Geophys. Res. Lett., 35: [doi:10.1029/2008GL035692]

    Goossens, S. J., and K. Matsumoto. 2007. "Lunar satellite orbit determination analysis and quality assessment from Lunar Prospector tracking data and SELENE simulations." Adv. Sp. Res., 40: 43-50 [10.1016/j.asr.2006.12.008]

    Goossens, S. J., P. Visser, and B. Ambrosius. 2005. "A method to determine regional lunar gravity fields from earth-based satellite tracking data." Planetary and Space Science, 53: 1331-1340 [10.1016/j.pss.2005.06.009]

    Goossens, S. J., P. Visser, K. Heki, and B. Ambrosius. 2005. "Local gravity from Lunar Prospector tracking data: Results for Mare Serenitatis." Earth, Planets and Space, 57: 1127-1132 [10.1186/BF03351893]

    Non-Refereed

    Scheeres, D. J., J. W. McMahon, A. S. French, et al. D. N. Brack, A. B. Davis, J. M. Leonard, P. Antreasian, M. Brozovic, S. R. Chesley, D. Farnocchia, R. A. Jacobson, Y. Takahashi, E. Mazarico, A. Liounis, D. D. Rowlands, D. E. Highsmith, K. Getzandanner, M. Moreau, P. Tricarico, S. J. Goossens, C. L. Johnson, M. M. Al Asad, M. G. Daly, J. A. Seabrook, J. Roberts, M. E. Perry, O. S. Barnouin, C. W. Hergenrother, M. C. Nolan, and D. S. Lauretta. 2019. "OSIRIS-REx gravity field estimates for Bennu using spacecraft and natural particle tracking data ." Proceedings of the workshop on Asteroid Science in the Age of Hayabusa2 and OSIRIS-REx, Tucson, Arizona, Nov. 5-7, 2019 [Full Text (Link)]

    Scheeres, D. J., A. S. French, J. W. McMahon, et al. A. B. Davis, D. N. Brack, J. M. Leonard, P. Antreasian, M. Brozovic, S. R. Chesley, D. Farnocchia, R. A. Jacobson, Y. Takahashi, E. Mazarico, A. Liounis, D. D. Rowlands, D. E. Highsmith, K. Getzandanner, M. Moreau, P. Tricarico, S. J. Goossens, J. C. L, M. M. Al Asad, M. G. Daly, J. A. Seabrook, J. Roberts, M. Perry, O. S. Barnouin, C. W. Hergenrother, M. C. Nolan, D. S. Lauretta, and The OSIRIS-REx Team. 2019. "OSIRIS-REx Gravity Field Estimates for Bennu Using Spacecraft and Natural Particle Tracking Data." Proceedings of the European Planetary Science Congress / Division for Planetary Sciences Joint Meeting (EPSC-DPS 2019), Geneva, Switzerland, Sept. 15-19, 2019 13 (EPSC-DPS2019-106-2): [Full Text (Link)]

    Goossens, S. J., T. J. Sabaka, A. F. Mora, and E. Heijkoop. 2018. "A high-resolution global map of lunar gravity from patched local solutions." Proceedings of the 49th Lunar and Planetary Science Conference, The Woodlands, Texas, U.S.A. March 19-23, 2018, Paper #2477 [Full Text (Link)]

    Goossens, S. J., F. G. Lemoine, P. Rosenblatt, E. Mazarico, and S. Lebonnois. 2017. "Venus Gravity Field Modeling from Magellan and Venus Express Tracking Data." Proceedings of the 48th Lunar and Planetary Science Conference, March 20-24, 2017, The Woodlands, Texas, U.S.A. (Paper # 1984): [Full Text (Link)]

    Goossens, S. J., F. G. Lemoine, T. J. Sabaka, et al. J. B. Nicholas, E. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2016. "A global degree and order 1200 model of the lunar gravity field using GRAIL mission data." Proceedings of the 47th Lunar and Planetary Science Conference, March 21-25, 2016, The Woodlands, Texas, U.S.A. Paper # 1484: [Full Text (Link)]

    Mazarico, E. M., F. G. Lemoine, S. J. Goossens, et al. T. J. Sabaka, J. B. Nicholas, D. D. Rowlands, G. A. Neumann, M. H. Torrence, D. E. Smith, and M. T. Zuber. 2013. "Improved precision orbit determination of lunar orbiters from GRAIL-derived lunar gravity models." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II: San Diego, California, U.S.A.: 1125-1141.

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. M. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, D. Caprette, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2013. "Modeling and precise orbit determination in suport of gravity model development for the GRAIL mission." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II: San Diego, California, U.S.A.: 1111-1123.

    Talks, Presentations and Posters

    Invited

    What we learned about the interior of the Moon, Mercury and Mars from recent (and ongoing) NASA missions

    2 / 5 / 2019

    Seminar at Georgetown University in Washington, DC, in the Phsyics Seminars series.

    Tidal heating and the interior structure of the Moon

    12 / 3 / 2014

    Seminar at the Physics Department of UMBC.

    Lunar exploration in Japan: scientific results from Kaguya (SELENE) and future mission plans

    7 / 27 / 2010

    Seminar at Delft University of Techonology, the Netherlands.

    Selenodetic results from the Kaguya (SELENE) mission

    7 / 26 / 2010

    Seminar at the Royal Observatory of Belgium.

    SELENE orbit determination and gravity field model evaluation

    7 / 2010

    Oral presentation at 38th COSPAR Assembly, 2010.

    Orbit determination and quality assessment Using SELENE tracking data and results

    7 / 2008

    Oral presentation at 37th COSPAR Assembly, 2008.

    Global lunar gravity field determination using historical and recent tracking data in preparation for SELENE

    12 / 2006

    Oral presentation at AGU Fall Meeting, 2006.

    Lunar satellite orbit determination analysis and quality assessment from Lunar Prospector tracking data and SELENE simulations

    7 / 2006

    Oral presentation at 36th COSPAR Assembly, 2006.

    Other

    Updated Kaguya Extended Mission Orbit Product for Improving the Geometry of the Extended Mission Data

    6 / 18 / 2019

    Oral presentation at the 4th Planetary Data Workshop, 2019.

    Estimation of Crust and Lithospheric Properties for Mercury from High-Resolution Gravity Field Models

    5 / 22 / 2019

    Seminar for the director of the Solar System Exploration Division of GSFC.

    Estimation of Crust and Lithospheric Properties for Mercury from High-Resolution Gravity Field Models

    3 / 19 / 2019

    Oral presentation at the 50th LPSC, 2019.

    How GRAIL and LOLA data help improve the geometry of the data of the lunar Kaguya mission

    2 / 27 / 2019

    Seminar for the director of the Solar System Exploration Division at GSFC.

    Venus Gravity Field Determination Using Magellan and Venus Express Tracking Data

    11 / 7 / 2018

    Oral presentation at VEXAG 2018 meeting.

    Improving the geometry of Kaguya extended mission data through refined orbit determination using laser altimetry data

    7 / 17 / 2018

    Oral presentation at COSPAR 2018 meeting.

    A high-resolution global map of lunar gravity from patched local solutions using GRAIL data

    3 / 23 / 2018

    Oral presentation at the 49th LPSC, 2018.

    Estimating crustal properties directly from satellite tracking data by using a topography-based constraint

    12 / 10 / 2017

    Oral presentation at AGU Fall Meeting, 2017.

    Evidence for a Low Bulk Crustal Density for Mars from Gravity and Topography

    10 / 25 / 2017

    Seminar for the director of the Solar System Exploration Division of GSFC.

    Global and Local Gravity Field Models of the Moon Using GRAIL Primary and Extended Mission Data

    3 / 16 / 2015

    Oral Presentation at 48th LPSC meeting, 2017.

    Selected Public Outreach

    NCCS-Enabled Gravity Models Reveal Density of Moon’s Crust 4 / 2020 - Present
    https://www.nccs.nasa.gov/news-events/nccs-highlights/moon-crust

    Results for the recent paper by Goossens et al. (2020) on the density of the crust of the Moon as determined from GRAIL data were obtained with the use of the supercomputing facilities of the NASA Center for Climate Simulation at GSFC. This piece highlights the results and computational resources applied.

    UMBC’s Sander Goossens determines structure of Mercury’s core as part of NASA team. 9 / 2019 - 9 / 2019
    https://tinyurl.com/y48ldssv

    A news article at UMBC describing the results of the Genova et al. (2019) paper, which presents geodetic evidence for the existence of a solid inner core for Mercury.

    Mercury’s Spin and Gravity Reveals the Planet’s Inner Solid Core 4 / 2019 - 4 / 2019
    https://tinyurl.com/yybzyt8d

    A NASA press release discussing the results and implications of the Genova et al. (2019) paper on Mercury's interior structure.

    New Gravity Map Suggests Mars Has a Porous Crust 9 / 2017 - 9 / 2017
    https://www.nasa.gov/feature/goddard/2017/new-gravity-map-suggests-mars-has-a-porous-crust

    A NASA press release describing the results of the Goossens et al. (2017) paper on the crustal density of Mars.

    NASA Studies Asteroid Collisions From Millions Of Years Ago 12 / 2016 - 12 / 2016
    http://baltimore.cbslocal.com/2016/12/12/nasa-studies-asteroid-collisions-from-millions-of

    A television interview with Alex DeMetrick of the CBS affiliate WJZ, discussing the Orientale Science paper by Zuber et al. (2016).

    UMBC research analyzes close-up of massive moon crater, a remnant of early solar system 12 / 2016 - 12 / 2016
    http://www.baltimoresun.com/news/bs-hs-umbc-moon-crater-20161209-story.html

    An interview with the Baltimore Sun about the Orientale Science paper by Zuber et al. (2016).

    New Science cover story on massive Moon crater features innovative UMBC research techniques 11 / 2016 - 11 / 2016
    http://news.umbc.edu/new-science-cover-story-on-massive-moon-crater-features-innovative-um

    An interview published at the UMBC News site that highlights the Zuber et al. (2016) Science paper (with cover image) on Mare Orientale.

    Three Cool Things We’ve Learned From NASA's Mars Gravity Map 3 / 2016 - 3 / 2016
    http://news.nationalgeographic.com/2016/03/160324-mars-nasa-gravity-map-space-science/

    An article at National Geopgraphic highlighting the new Mars gravity field model that was published in the Genova et al. (2016) paper.

    Local Model Better Describes Lunar Gravity 10 / 2014 - 10 / 2014
    https://eos.org/research-spotlights/local-model-better-describes-lunar-gravity

    A research highlight in EOS, describing the Goossens et al. (2014) paper that presents a high-resolution local model of lunar gravity at the south pole. This paper also provided the cover image for the issue of Geophysical Research Letters in which it appeared. This cover image was subsequently featured in Discover magazine, and used for other articles in that magazine as well (for example, see this article about drilling into the Chicxulub crater).

    Earth's pull melts layer around Moon's core 7 / 2014 - 7 / 2014
    http://www.abc.net.au/science/articles/2014/07/28/4053888.htm

    An interview with the Australian ABC news site about a possible low-viscosity zone in the deep lunar interior, published in a Nature Geoscience (Harada et al., 2014) paper.

    Brief Bio

    Sander Goossens received his PhD in 2005 from Delft University of Technology, Faculty of Aerospace Engineering in the Netherlands. From 2005-2011 he worked at the National Astronomical Observatory in Japan on the SELenological and ENgineering Explorer (SELENE) mission (also called Kaguya). He was involved in the determination of the gravity field of the Moon using the first-ever farside data (combined with available historical lunar tracking data), and in the determination of the topography of the Moon using laser altimeter data.

    In 2011 he joined the Planetary Geodynamics group (now: Planetary Geology, Geophysics, and Geochemistry Laboratory) at Goddard as a scientist with the Center for Research and Exploration in Space Science & Technology/University of Maryland Baltimore County. At Goddard, he has extensively worked on gravity field determination of various terrestrial planets: the Moon using GRAIL data, Mercury using MESSENGER data, Mars using a combination of MGS, Odyssey, and MRO data, and Venus using Magellan and Venus Express data. These results have been used to infer models of the interior structure of the planets.

    Recent highlights include:

    • the development of a constraint method using topography information that allows for the direct determination of the bulk crustal density from tracking data. This was verified with pre-GRAIL data, where the same result for the bulk crustal density as GRAIL was found. This was then applied to Mars and showed indications that Mars' bulk crustal density is lower than assumed.
    • the determination of  a degree and order 1200 (4.5 km by 4.5 km at the equator) lunar gravity model from GRAIL data. This model also applied the new constraint, resulting in high correlations between gravity and topography over the entire spectrum (by design). The resulting effective density spectrum, a measure of density of the (upper) crust at various spatial scales, is also stable over the entire degree range. This model was then used to map the vertical and lateral density variations in the Moon's crust at high resolution.
    • the development of gravity analysis methods based on line-of-sight accelerations. This was applied to MESSENGER data and has resulted in gravity models for Mercury that have improved (local) correlations with topography, from which properties of the lithosphere can be estimated.
    • using laser altimetry as a measurement type in the orbit determination of Kaguya. A determination of Kaguya's orbit with this new measurement type, and with GRAIL gravity models, has improved the orbit precision from a level of several kilometers to a level of several tens of meters. This results in better geolocation of the entire Kaguya extended mission data set.

    Currently, he is working with MESSENGER data for Mercury gravity field determination, analysis of GRAIL data to determine the deep interior structure of the Moon, and Cassini data to determine the gravity field of Saturn's moons Titan and Enceladus. He is also participating in the analysis of data from OSIRIS-REx.

    Selected Publications

    Refereed

    Goossens, S. J., T. J. Sabaka, M. A. Wieczorek, et al. G. A. Neumann, E. Mazarico, F. G. Lemoine, J. B. Nicholas, D. E. Smith, and M. T. Zuber. 2020. "High-resolution gravity field models from GRAIL data and implications for models of the density structure of the Moon’s crust." Journal of Geophysical Research: Planets 125 (2): [10.1029/2019JE006086]

    Goossens, S. J., E. Mazarico, Y. Ishihara, B. Archinal, and L. Gaddis. 2020. "Improving the geometry of Kaguya extended mission data through refined orbit determination using laser altimetry." Icarus 336 [10.1016/j.icarus.2019.113454]

    Genova, A., S. Goossens, E. Mazarico, et al. F. G. Lemoine, G. A. Neumann, W. Kuang, T. J. Sabaka, S. A. Hauck, II, D. E. Smith, S. C. Solomon, and M. T. Zuber. 2019. "Geodetic evidence that Mercury has a solid inner core." Geophysical Research Letters 46 (7): 3625-3633 [Full Text (Link)] [10.1029/2018gl081135]

    Mazarico, E., G. A. Neumann, M. K. Barker, et al. S. J. Goossens, D. E. Smith, and M. T. Zuber. 2018. "Orbit determination of the Lunar Reconnaissance Orbiter: Status after Seven Years." Planetary and Space Science 162 2-19 [Full Text (Link)] [10.1016/j.pss.2017.10.004]

    Genova, A., E. Mazarico, S. J. Goossens, et al. F. G. Lemoine, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2018. "Solar System Expansion and Strong Equivalence Principle as seen by the NASA MESSENGER mission." Nature Communications 9 289 [Full Text (Link)] [10.1038/s41467-017-02558-1]

    Goossens, S. J., T. J. Sabaka, A. Genova, et al. E. Mazarico, J. B. Nicholas, and G. A. Neumann. 2017. "Evidence for a Low Bulk Crustal Density for Mars from Gravity and Topography." Geophysical Research Letters 44 (15): 7686–7694 [Full Text (Link)] [10.1002/2017GL074172]

    Jansen, J., J. Andrews-Hanna, Y. Li, et al. P. Lucey, G. Taylor, S. Goossens, F. Lemoine, E. Mazarico, J. Head, C. Milbury, W. Kiefer, J. Soderblom, and M. Zuber. 2017. "Small-scale density variations in the lunar crust revealed by GRAIL." Icarus 291 107-123 [10.1016/j.icarus.2017.03.017]

    Smith, D. E., M. T. Zuber, G. A. Neumann, et al. E. Mazarico, F. G. Lemoine, J. W. Head, P. G. Lucey, O. Aharonson, M. S. Robinson, X. Sun, M. H. Torrence, M. K. Barker, J. Oberst, T. C. Duxbury, D. Mao, O. S. Barnouin, K. Jha, D. D. Rowlands, S. Goossens, D. M. Hollibaugh Baker, S. Bauer, P. Gläser, M. Lemelin, M. Rosenburg, M. M. Sori, J. Whitten, and T. Mcclanahan. 2017. "Summary of the Results from the Lunar Orbiter Laser Altimeter after Seven Years in Lunar Orbit." Icarus 283 70-91 [10.1016/j.icarus.2016.06.006]

    Zuber, M. T., D. E. Smith, G. A. Neumann, et al. S. Goossens, J. C. Andrews-Hanna, J. W. Head, W. S. Kiefer, S. W. Asmar, A. S. Konopliv, F. G. Lemoine, I. Matsuyama, H. J. Melosh, P. J. McGovern, F. Nimmo, R. J. Phillips, S. C. Solomon, G. J. Taylor, M. M. Watkins, M. A. Wieczorek, J. G. Williams, J. C. Jansen, B. C. Johnson, J. T. Keane, E. Mazarico, K. Miljkovi, R. S. Park, J. M. Soderblom, and D.-N. Yuan. 2016. "Gravity field of the Orientale basin from the Gravity Recovery and Interior Laboratory Mission." Science 354 (6311): 438-441 [10.1126/science.aag0519]

    Harada, Y., S. Goossens, K. Matsumoto, et al. J. Yan, J. Ping, H. Noda, and J. Haruyama. 2016. "The deep lunar interior with a low-viscosity zone: Revised constraints from recent geodetic parameters on the tidal response of the Moon." Icarus 276 96-101 [10.1016/j.icarus.2016.04.021]

    Genova, A., S. Goossens, F. G. Lemoine, et al. E. Mazarico, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2016. "Seasonal and static gravity field of Mars from MGS, Mars Odyssey and MRO radio science." Icarus 272 228-245 [10.1016/j.icarus.2016.02.050]

    Neumann, G. A., M. T. Zuber, M. A. Wieczorek, et al. J. W. Head, D. M. Baker, S. C. Solomon, D. E. Smith, F. G. Lemoine, E. Mazarico, T. J. Sabaka, S. J. Goossens, H. J. Melosh, R. J. Phillips, S. W. Asmar, A. S. Konopliv, J. G. Williams, M. M. Sori, J. M. Soderblom, K. Miljkovic, J. C. Andrews-Hanna, F. Nimmo, and W. S. Kiefer. 2015. "Lunar impact basins revealed by Gravity Recovery and Interior Laboratory measurements." Science Advances 1 (9): e1500852-e1500852 [Full Text (Link)] [10.1126/sciadv.1500852]

    Genova, A., S. J. Goossens, F. G. Lemoine, et al. E. Mazarico, S. K. Fricke, D. E. Smith, and M. T. Zuber. 2015. "Long-term variability of CO2 and O in the Mars upper atmosphere from MRO radio science data." J. Geophys. Res.-Planets 120 (5): 849-868 [10.1002/2014JE004770]

    Mazarico, E., A. Genova, S. J. Goossens, et al. F. G. Lemoine, G. A. Neumann, D. E. Smith, M. T. Zuber, and S. C. Solomon. 2014. "The Gravity Field, Orientation, and Ephemeris of Mercury from MESSENGER Observations after Three Years in Orbit." J. Geophysical Res.-Planets 119 2417–2436 [10.1002/2014JE004675]

    Harada, Y., S. J. Goossens, K. Matsumoto, et al. J. Yan, J. Ping, H. Noda, and J. Haruyama. 2014. "Strong tidal heating in an ultralow-viscosity zone at the core-mantle boundary of the Moon." Nature Geoscience 7 569-572 [doi:10.1038/ngeo2211]

    Williams, J. G., A. S. Konopliv, D. H. Boggs, et al. R. S. Park, D.-N. Yuan, F. G. Lemoine, S. J. Goossens, E. Mazarico, F. Nimmo, R. C. Weber, S. W. Asmar, H. J. Melosh, G. A. Neumann, R. J. Phillips, D. E. Smith, S. C. Solomon, M. M. Watkins, M. A. Wieczorek, J. C. Andrews-Hanna, J. W. Head, W. S. Kiefer, I. Matsuyama, P. J. McGovern, G. J. Taylor, and M. T. Zuber. 2014. "Lunar interior properties from the GRAIL mission." J. Geophys. Res.-Planets [10.1002/2013JE004559]

    Goossens, S. J., T. J. Sabaka, J. B. Nicholas, et al. F. G. Lemoine, D. D. Rowlands, E. Mazarico, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2014. "High-resolution local gravity model of the south pole of the Moon from GRAIL extended mission data." Geophys. Res. Lett. 41 (10): 3367-3374 [Full Text (Link)] [10.1002/2014GL060178]

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2014. "GRGM900C: A degree-900 lunar gravity model from GRAIL primary and extended mission data." Geophys. Res. Lett. 41 (10): 3382-3389 [Full Text (Link)] [10.1002/2014GL060027]

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. M. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, D. S. Caprette, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2013. "High-degree gravity models from GRAIL primary mission data." J. Geophys. Res.-Planets 118 1676-1698 [10.1002/jgre.20118]

    Zuber, M. T., D. E. Smith, M. M. Watkins, et al. S. W. Asmar, A. S. Konopoliv, F. G. Lemoine, H. J. Melosh, R. J. Phillips, G. A. Neumann, S. C. Solomon, M. A. Wieczorek, J. G. Williams, S. J. Goossens, G. Kruizinga, E. M. Mazarico, R. S. Park, and D. Yuan. 2012. "Gravity field of the Moon from the Gravity Recovery and Interior Laboratory (GRAIL) Mission." Science 339 (6120): 668-671 [Full Text (Link)] [10.1126/science.1231507]

    Smith, D. E., M. T. Zuber, R. Phillips, et al. S. Solomon, S. Hauck, F. G. Lemoine, E. M. Mazarico, G. A. Neumann, S. Peale, J. Margot, C. C. Johnson, M. H. Torrence, M. E. Perry, D. D. Rowlands, S. J. Goossens, J. Head, and A. Taylor. 2012. "Gravity Field and Internal Structure of Mercury from MESSENGER ." Science 336 (6078): 214-217 [Full Text (Link)] [ 10.1126/science.1218809]

    Goossens, S. J., Y. Ishihara, K. Matsumoto, and S. Sasaki. 2012. "Local lunar gravity field analysis over the South Pole-Aitken basin from SELENE farside tracking data." Journal of Geophysical Research Planets 117 [10.1029/2011JE003831]

    Liu, Q., K. Matsumoto, T. Iwata, et al. N. Namiki, H. Noda, H. Hanada, Y. Ishihara, S. J. Goossens, F. Kikuchi, K. Asari, S. Tsuruta, T. Ishikawa, S. Sasaki, and T. Takano. 2011. "Effect of Phase Pattern of Antennas Onboard Flying Spin Satellites on Doppler Measurements ." IEEE Transactions on Aerospace and Electronic Systems 47 (1): 405-419 [10.1109/TAES.2011.5705683]

    Fok, H. S., C. K. Shum, Y. Yi, et al. H. Araki, J. Ping, J. G. Williams, G. Fotopoulos, H. Noda, S. Goossens, Q. Huang, Y. Ishihara, K. Matsumoto, J. Oberst, and S. Sasaki. 2011. "Accuracy Assessment of Lunar Topography Models, Earth, Planets and Space." Earth Planets and Space 63 15-23 [ 10.5047/eps.2010.08.005]

    Ishihara, Y., T. Morota, R. Nakamura, S. Goossens, and S. Sasaki. 2011. "Anomalous Moscoviense Basin: Single Oblique Impact or Double Impact Origin?" Geophysical Research Letters 38 L03201 [ 10.1029/2010GL045887]

    Goossens, S. J., K. Matsumoto, D. D. Rowlands, et al. F. G. Lemoine, H. Noda, and H. Araki. 2011. "Orbit determination of the SELENE satellites using multi-satellite data types and evaluation of SELENE gravity field models." J. Geodesy 85 487-504 [10.1007/s00190-011-0446-2]

    Goossens, S. J., K. Matsumoto, Q. Liu, et al. F. Kikuchi, K. Sato, H. Hanada, Y. Ishihara, H. Noda, N. Kawano, N. Namiki, T. Iwata, F. G. Lemoine, D. D. Rowlands, Y. Harada, and M. Chen. 2011. "Lunar gravity field determination using SELENE same-beam differential VLBI tracking data." J. Geodesy 85 (4): 205-228 [Full Text (Link)] [10.1007/s00190-010-0430-2]

    Goossens, S. J. 2010. "Applying spectral leakage corrections to gravity field determination from satellite tracking data." Geophysical Journal International 181 (3): 1459-1472 [10.1111/j.1365-246X.2010.04585.x]

    Matsumoto, K., S. J. Goossens, Y. Ishihara, et al. Q. Liu, F. Kikuchi, T. Iwata, N. Namiki, H. Noda, H. Hanada, N. Kawano, F. G. Lemoine, and D. D. Rowlands. 2010. "An improved lunar gravity field model from SELENE and historical tracking data: Revealing the farside gravity features." J. Geophys. Res.-Planets 115 E06007 [Full Text (Link)] [10.1029/2009JE003499]

    Araki, H., S. Tazawa, H. Noda, et al. Y. Ishihara, S. J. Goossens, S. Sasaki, N. Kawano, I. Kamiya, H. Otake, J. Oberst, and C. Shum. 2009. "Lunar global shape and polar topography derived from KAGUYA-LALT laser altimetry." Science 323 897-900 [doi:10.1126/science.1164146]

    Namiki, N., T. Iwata, K. Matsumoto, et al. H. Hanada, H. Noda, S. J. Goossens, M. Ogawa, N. Kawano, K. Asari, S. Tsuruta, Y. Ishihara, Q. Liu, F. Kikuchi, T. Ishikawa, S. Sasaki, and C. Aoshima. 2009. "Farside gravity field of the Moon from four-way Doppler measurements of SELENE (Kaguya)." Science 323 900-905 [doi:10.1126/science.1168029]

    Goossens, S. J., and K. Matsumoto. 2008. "Lunar degree 2 potential Love number determination from satellite tracking data." Geophys. Res. Lett. 35 [doi:10.1029/2007GL031960]

    Noda, H., H. Araki, S. J. Goossens, et al. Y. Ishihara, K. Matsumoto, S. Tazawa, N. Kawano, and S. Sasaki. 2008. "Illumination conditions at the lunar polar regions by KAGUYA (SELENE) laser altimeter." Geophys. Res. Lett. 35 [doi:10.1029/2008GL035692]

    Goossens, S. J., and K. Matsumoto. 2007. "Lunar satellite orbit determination analysis and quality assessment from Lunar Prospector tracking data and SELENE simulations." Adv. Sp. Res. 40 43-50 [10.1016/j.asr.2006.12.008]

    Goossens, S. J., P. Visser, and B. Ambrosius. 2005. "A method to determine regional lunar gravity fields from earth-based satellite tracking data." Planetary and Space Science 53 1331-1340 [10.1016/j.pss.2005.06.009]

    Goossens, S. J., P. Visser, K. Heki, and B. Ambrosius. 2005. "Local gravity from Lunar Prospector tracking data: Results for Mare Serenitatis." Earth, Planets and Space 57 1127-1132 [10.1186/BF03351893]

    Non-Refereed

    Scheeres, D. J., J. W. McMahon, A. S. French, et al. D. N. Brack, A. B. Davis, J. M. Leonard, P. Antreasian, M. Brozovic, S. R. Chesley, D. Farnocchia, R. A. Jacobson, Y. Takahashi, E. Mazarico, A. Liounis, D. D. Rowlands, D. E. Highsmith, K. Getzandanner, M. Moreau, P. Tricarico, S. J. Goossens, C. L. Johnson, M. M. Al Asad, M. G. Daly, J. A. Seabrook, J. Roberts, M. E. Perry, O. S. Barnouin, C. W. Hergenrother, M. C. Nolan, and D. S. Lauretta. 2019. "OSIRIS-REx gravity field estimates for Bennu using spacecraft and natural particle tracking data ." Proceedings of the workshop on Asteroid Science in the Age of Hayabusa2 and OSIRIS-REx, Tucson, Arizona, Nov. 5-7, 2019 [Full Text (Link)]

    Scheeres, D. J., A. S. French, J. W. McMahon, et al. A. B. Davis, D. N. Brack, J. M. Leonard, P. Antreasian, M. Brozovic, S. R. Chesley, D. Farnocchia, R. A. Jacobson, Y. Takahashi, E. Mazarico, A. Liounis, D. D. Rowlands, D. E. Highsmith, K. Getzandanner, M. Moreau, P. Tricarico, S. J. Goossens, J. C. L, M. M. Al Asad, M. G. Daly, J. A. Seabrook, J. Roberts, M. Perry, O. S. Barnouin, C. W. Hergenrother, M. C. Nolan, D. S. Lauretta, and The OSIRIS-REx Team. 2019. "OSIRIS-REx Gravity Field Estimates for Bennu Using Spacecraft and Natural Particle Tracking Data." Proceedings of the European Planetary Science Congress / Division for Planetary Sciences Joint Meeting (EPSC-DPS 2019), Geneva, Switzerland, Sept. 15-19, 2019 13 (EPSC-DPS2019-106-2): [Full Text (Link)]

    Goossens, S. J., T. J. Sabaka, A. F. Mora, and E. Heijkoop. 2018. "A high-resolution global map of lunar gravity from patched local solutions." Proceedings of the 49th Lunar and Planetary Science Conference, The Woodlands, Texas, U.S.A. March 19-23, 2018, Paper #2477 [Full Text (Link)]

    Goossens, S. J., F. G. Lemoine, P. Rosenblatt, E. Mazarico, and S. Lebonnois. 2017. "Venus Gravity Field Modeling from Magellan and Venus Express Tracking Data." Proceedings of the 48th Lunar and Planetary Science Conference, March 20-24, 2017, The Woodlands, Texas, U.S.A. [Full Text (Link)]

    Goossens, S. J., F. G. Lemoine, T. J. Sabaka, et al. J. B. Nicholas, E. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2016. "A global degree and order 1200 model of the lunar gravity field using GRAIL mission data." Proceedings of the 47th Lunar and Planetary Science Conference, March 21-25, 2016, The Woodlands, Texas, U.S.A. Paper # 1484 [Full Text (Link)]

    Mazarico, E. M., F. G. Lemoine, S. J. Goossens, et al. T. J. Sabaka, J. B. Nicholas, D. D. Rowlands, G. A. Neumann, M. H. Torrence, D. E. Smith, and M. T. Zuber. 2013. "Improved precision orbit determination of lunar orbiters from GRAIL-derived lunar gravity models." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II 1125-1141

    Lemoine, F. G., S. J. Goossens, T. J. Sabaka, et al. J. B. Nicholas, E. M. Mazarico, D. D. Rowlands, B. D. Loomis, D. S. Chinn, D. Caprette, G. A. Neumann, D. E. Smith, and M. T. Zuber. 2013. "Modeling and precise orbit determination in suport of gravity model development for the GRAIL mission." Spaceflight Mechanics 2013 (AAS/AIAA Spaceflight Mechanics Meeting, Feb. 10-14, 2013, Kauai, Hawaii), Advances in the Astronautical Sciences 148, Part II 1111-1123

                                                                                                                                                                                            
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