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 Planetary And Exoplanetary Atmospheres (3222): People
Mark  Hofstadter's Picture
Jet Propulsion Laboratory
M/S 183-301
4800 Oak Grove Drive
Pasadena, CA 91109
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Curriculum Vitae:

Mark Hofstadter

Dr. Mark Hofstadter is a Planetary Scientist working at NASA's Jet Propulsion Laboratory in Pasadena, California. His research focuses on the atmospheres of planets, primarily the giants of the outer solar system (Jupiter, Saturn, Uranus, and Neptune), and on comets. Dr. Hofstadter uses both ground- and space-based radio telescopes in the course of his work. He is the Principal Investigator for MIRO (Microwave Instrument on the Rosetta Orbiter), currently flying alongside a comet. He also works with the Goldstone-Apple Valley Radio Telescope (GAVRT) program. GAVRT is a partnership between scientists and educators that allows middle- and high-school students to carry out real scientific research as part of their math and science classes.

  • B.S., Physics, Stanford University (1984)
  • M.S., Planetary Science, California Institute of Technology (1987)
  • Ph.D., Planetary Science (Electrical Engineering minor), California Institute of Technology (1992)

Research Interests
  • Microwave observations of planetary atmospheres and of comets.
  • The structure and seasonal variability of Uranus' atmosphere.
  • The structure and evolution of the nucleus and coma of comets.


MIRO (Microwave Instrument for the Rosetta Orbiter) is a scientific instrument on the ROSETTA Spacecraft.

GAVRT - Goldstone Apple Valley Radio Telescope Icon GAVRT - Goldstone Apple Valley Radio Telescope
GAVRT teaches students to use radio astronomy, to control a huge antenna, and to collect science data from objects in the universe at which the antenna is pointed.

Professional Experience
  • NASA Jet Propulsion Laboratory (1986-Present)
    • Principal Investigator for MIRO, the Microwave Instrument for the Rosetta Orbiter (2015 to present)
    • Deputy Principal Investigator for MIRO (2010 - 2015)
    • Board of Directors, Lewis Center for Educational Research (2006 - 2009)
    • Lead Scientist, Goldstone-Apple Valley Radio Telescope (2005 - 2010)
    • Research Scientist (2003-Present)
    • Deputy Section Manager, Planetary and Life Detection Section (2003-2005)
    • Summer Research Advisor for Students (Various times) (1996-Present)
    • Educational Outreach (1994-Present)
    • Instrument Scientist for the AIRS Visible/Near-IR System (1996-2003)
    • Scientist (1994-2003)
    • Resident Research Associate, National Research Council (1991-1994)
  • California Institute of Technology (1986-1991)
    • Research Assistant (1986-1991)
    • Teaching Assistant, courses in planetary radio astronomy and atmospheric dynamics (1987-1988)
  • Senior Field Engineer, Allied-Bendix Aerospace (1984-1985)
  • Laboratory Instructor, Undergraduate observational astronomy class, Stanford University (1983-1984)

Selected Awards
  • NASA Group Achievement Awards:
    • Venus Balloon Experiment (1985)
    • AIRS (2003)
    • Aqua (2003)
    • MIRO (2005, 2011)
    • Juno (2012)
    • NPP (2012)
    • Rosetta (2015)

Selected Publications
  1. Biver, N., M. Hofstadter, S. Gulkis, D. Bockelée-Morvan, M. Choukroun, E. Lellouch, F.P. Schloerb, L. Rezac, W.H. Ip, C. Jarchow, P. Hartogh, S. Lee, P. von Allmen, J. Crovisier, C. Leyrat, P. Encrenaz.  Distribution of Water around the Nucleus of Comet 67P/Churyumov-Gerasimenko at 3.4 AU from the Sun as seen by the MIRO Instrument on Rosetta.  Astron. and Astrophys. 583, A3:1-7 (2015).
  2. Lee, S., M. Hofstadter, M. Frerking, S. Gulkis, P. von Allmen, J. Crovisier, N. Biver, D. Bockelée-Morvan, L. Kamp, M. Choukroun, S. Keihm, M. Janssen.  Submillimeter Observations of Water Vapor at 557 GHz in Comet C/2002 T7 (LINEAR). Icarus 239, 141-153 (2014).
  3. Keihm, S., L. Kamp, S. Gulkis, M. Hofstadter, S. Lee, M. Janssen, M. Choukroun.  Reconciling Main Belt Asteroid Spectral Flux Density Measurements with a Self-Consistent Thermophysical Model. Icarus 226, 1086-1102 (2013).
  4. Klein, M.J. and M.D. Hofstadter. Long-term Variations in the Microwave Brightness Temperature of the Uranus Atmosphere. Icarus 184, 170-180 (2006).
  5. Janssen, M.A., M.D. Hofstadter, S. Gulkis, A.P. Ingersoll, M. Allison, S.J. Bolton, S.M. Levin, and L.W. Kamp. Microwave Remote Sensing of Jupiter's Atmosphere from an Orbiting Spacecraft. Icarus, 173, 447-453 (2005).
  6. Hofstadter, M.D. and B.J. Butler. Seasonal Change in the Deep Atmosphere of Uranus. Icarus, 165, 168-180 (2003).
  7. Gautier, C., S. Yang, and M. Hofstadter. AIRS/Vis Near IR Instrument. IEEE Transactions on Geoscience and Remote Sensing 41, 330-342 (2002).
  8. Hofstadter, M.D., P. Hartogh, J.P. McMullin, R.N. Martin, C. Jarchow, and W. Peters. A Search for Variability in the HCN to H2CO Ratio in Comet Hale-Bopp. Earth, Moon, and Planets, 78, 53-61 (1999).
  9. Hofstadter, M.D. and B.C. Murray 1990.  Ice Sublimation and Rheology: Implications for the Martian Polar Layered Deposits.  Icarus  84, 352–361.

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