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Timothy Neal Titus, Ph.D.

Timothy Titus is a Space Scientist at Astrogeology Science Center. 

1999 - Present

Space Scientist - U.S. Geological Survey, Flagstaff AZ. Research: Spectral analysis of Martian polar regions using data from MGS TES, Mars Odyssey THEMIS, and MRO CRISM. Thermal surface properties of 4 Vesta.

Oct 2010 - Jan 2011

Acting Science Center Director - U.S. Geological Survey, Flagstaff AZ.

1997 - 1999

Remote Sensing Analyst - Contracted with the U.S. Geological Survey, Flagstaff, AZ, and Oak Ridge Associated Universities, Oak Ridge, TN. Research: Spectral analysis of Martian polar regions using data from MGS TES.

1996 - 1997

Staff Lecturer - University of Wyoming, Laramie, WY. Research: Multivariate analysis of galaxy spectra.


Civilian Education

  • Ph.D.,Astrophysics, University of Wyoming, Laramie, WY, 1996
  • M.S., Astrophysics, Iowa State University, Ames, IA, 1988
  • B.A., Physics/Mathematics, Drake University, Des Moines, IA, 1985

Military Education

  • Engineer Officer Basic Course (1988)
  • Artillery Officer Advance Course (1992)
  • Combined Arms Service and Staff School (1995)
  • Command General Staff College (2000)
  • Quartermaster Officer Advance Course (2003)


  • Mars Polar Processes: Specifically - the CO2 cycle and polar energy balance.
  • Mars Thermal Inertia Studies: Specifically - the use of 2-layer thermal inertia models to detect sub-surface ice.
  • Mars Aeolian Studies: Specially - the global inventory and characterization of Mars dunes.
  • Cave Detection using the Thermal Infrared Remote Sensing: Specifically - using ground truth thermal characterization of terrestrial caves to develope techniques and procedures for detecting caves on Earth, the Moon, and Mars.


  • Co-Investigator on Mars Odyssey THermal EMission Imaging System (THEMIS).
  • Co-Investigator on Mars Reconnaissance Orbiter (MRO) Compact Reconnaissance Imaging Spectrometer for Mars (CRISM).
  • Selected as a Dawn at Vesta Participating Scientist.


Military Service

Lieutenant Colonel (Retired) Timothy N. Titus

Last Position prior to Retirement

Chief of Logistics
Camp Navajo
Arizona National Guard
Bellemont, AZ

Civil Service

  • Participating Scientist on DAWN at Vesta
  • Extensive experience analyzing Mars Odyssey (ODY) THermal Emission IMaging System (THEMIS) data
  • Extensive experience extracting and analyzing Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) data
  • Extensive knowledge of several programming languages, including IDL
  • Writes and maintains a GUI software package that enhances the analysis of TES spectral data
  • Extensive knowledge of multivariate analysis techniques, especially Principal Components Analysis (PCA)


  • Cornwall, C.; Titus, T. N., 2010, A comparison of Martian north and south polar cold spots and the long-term effects of the 2001 global dust storm, J. Geophys. Res., Volume 115, Issue E6, CiteID E06011.
  • Cull, S.; Arvidson, R.E.; Mellon, M.; Wiseman, S.; Clark, R.; Titus, T.N.; Morris, R.V.; McGuire, P.2010, Seasonal H2O and CO2 ice cycles at the Mars Phoenix l

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