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PDS_VERSION_ID                  = PDS3                                
LABEL_REVISION_NOTE             = "                                   
         2000-12-11 RS:simpson Revision;                              
         2001-12-06 RS:simpson Revision;                              
         2002-01-25 RS:simpson Revision;                              
         2002-02-22 RS:simpson Line length correction;                
         2002-02-24 RS:simpson Add JPLD-16765;                        
         2003-06-10 RS:simpson Add Seidelmann et al 2002;             
         2003-08-08 RS:simpson Added Mannucci et al 1998;             
         2003-08-26 RS:simpson Corrected Mannucci et al;              
         2003-11-26 RS:simpson Deleted SEIDELMANETAL2002 and          
                               Added SIMPSON1993;                     
         2007-03-06 RS:simpson Added ALBEE2001,                       
                                     ALBEEETAL2001,                   
                                     MALIN&EDGETT2001,                
                                     CHRISTENSENETAL2001,             
                                     ACUNAETAL2001,                   
                                     MITCHELLETAL2001,                
                                     SMITHETAL2001B,                  
                                     BOUGHER&KEATING1999, and         
                                     MARTIN&MURPHY2001;               
         2007-07-25 EN:sword   Corrected SMITHETAL2001B;              
         2007-07-26 RS:simpson Corrected HINSONETAL1999;              
         2007-07-28 RS:simpson Corrected SNYDER1987;                  
                               Added BARBINIS2001;                    
                                     WITHERSETAL2005;                 
         2007-09-11 RS:simpson Added CLANCYETAL2000 and               
                                     HINSONETAL2004;                  
         2008-05-05 RS:simpson Added BOUGHERETAL2001 and              
                                     BOUGHERETAL2004"                 
                                                                      
RECORD_TYPE                     = FIXED_LENGTH                        
RECORD_BYTES                    = 72                                  
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ACUNAETAL1992"                     
 REFERENCE_DESC                 = "Acuna, M.H., J.E.P. Connerney,     
P. Wasilewski, R.P. Lin, K.A. Anderson, C.W. Carlson, J. McFadden,    
D.W. Curtis, H. Reme, A. Cros, J.L. Medale, J.A. Sauvaud,             
C. d'Uston, S.J. Bauer, P. Cloutier, M. Mayhew, and N.F. Ness,        
Mars Observer Magnetic Fields Investigation, J. Geophys. Res.,        
97, 7799, 1992."                                                      
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
REFERENCE_KEY_ID                = "ACUNAETAL2001"                     
REFERENCE_DESC                  = "Acuna, M.H., J.E.P. Connerney,     
P. Wasilewski, R.P. Lin, D. Mitchell, K.A. Anderson, C.W. Carlson,    
J. McFadden, H. Reme, C. Mazelle, D. Vignes, S.J. Bauer, P. Cloutier, 
and N.F. Ness, The Magnetic Field of Mars: Summary of Results from    
the Aerobraking and Mapping Orbits, Journal of Geophysical Research,  
106, E10, 23403-23417, 2001."                                         
END_OBJECT = REFERENCE                                                
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ALBEE2001"                         
 REFERENCE_DESC                 = "Albee, A., Introduction to the     
special section: the Mars Global Surveyor mission, J. Geophys. Res.,  
106, E10, 23289, 2001."                                               
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ALBEEETAL1992"                     
 REFERENCE_DESC                 = "Albee, A.L., R.E. Arvidson,        
and F.D. Palluconi, Mars Observer Mission, Journal of                 
Geophysical Research, 97, 7665-7680, 1992."                           
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ALBEEETAL1998"                     
 REFERENCE_DESC                 = "Albee, A.L., F.D. Palluconi,       
and R.E. Arvidson, Mars Global Surveyor mission: Overview and         
status, Science, 279, 1671-1672, 1998."                               
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ALBEEETAL2001"                     
 REFERENCE_DESC                 = "Albee, A.L., R.E. Arvidson,        
F.D. Palluconi, and T. Thorpe, Overview of the Mars Global            
Surveyor mission, J. Geophys. Res., 106, E10, 23291-23316, 2001."     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ALLAN1966"                         
 REFERENCE_DESC                 = "Allan, D.W., Statistics of Atomic  
Frequency Standards, Proceedings of the IEEE, 54, 221-230, 1966."     
END_OBJECT             = REFERENCE                                    
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ANDERSONETAL1993"                  
 REFERENCE_DESC                 = "Anderson, J.D.,                    
J.W. Armstrong, and E.L. Lau, Upper Limits for Gravitational          
Radiation from Supermassive Coalescing Binaries, Astrophysical        
Journal, 408, 287-292, 1993."                                         
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ASMAR&HERRERA1993"                 
 REFERENCE_DESC                 = "Asmar, S.W., and R.G.              
Herrera, Radio Science Handbook, JPL D-7938, Volume 4, Jet            
Propulsion Laboratory, Pasadena, CA, 22 January 1993."                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ASMARETAL1995"                     
 REFERENCE_DESC                 = "Asmar, S.W., R.G. Herrera,         
and T. Priest, Radio Science Handbook, JPL D-7938 Volume 6, Jet       
Propulsion Laboratory, Pasadena, CA, 1995."                           
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ASMAR&RENZETTI1993"                
 REFERENCE_DESC                 = "Asmar, S.W., and N.A.              
Renzetti, The Deep Space Network as an Instrument for Radio           
Science Research, Jet Propulsion Laboratory Publication 80-93,        
Rev. 1, 15 April 1993."                                               
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "BARBINIS2001"                      
 REFERENCE_DESC                 = "Barbinis, E., MGS solar            
conjunction raw data set - ROCC V1.0, MGS-SUN-RSS-1-ROCC-V1.0,        
NASA Planetary Data System, 2001."                                    
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "BOUGHERETAL2001"                   
 REFERENCE_DESC                 = "Bougher, S.W., D.P. Hinson,        
J.M. Forbes, and S. Engel, MGS radio science electron density         
profiles and implications for the neutral atmosphere,                 
Geophysical Research Letters, 28, 3091-3094, 2001."                   
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "BOUGHERETAL2004"                   
 REFERENCE_DESC                 = "Bougher, S.W., S. Engel,           
D.P. Hinson, and J.R. Murphy, MGS radio science electron density      
profiles: interannual variability and implications for the            
neutral atmosphere, Journal of Geophysical Research, 109, E3,         
E03010, 10.1029/2003JE002154, 2004."                                  
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "BOUGHER&KEATING1999"               
 REFERENCE_DESC                 = "Bougher, S.W., and G.M. Keating,   
Mars Global Surveyor aerobraking: atmospheric trends and model        
interpretation, Adv. Space Res., 23(11), 1887-1897, 1999."            
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "CHRISTENSENETAL1992"               
 REFERENCE_DESC                 = "Christensen, P.R., D.L. Anderson,  
S.C. Chase, R.N. Clark, H.H. Kieffer, M.C. Malin, J.C. Pearl,         
J. Carpenter, N. Bandiera, F.G. Brown, and S. Silverman,              
Thermal emission spectrometer experiment: Mars Observer mission,      
J. Geophys. Res., 97, (E5) 7719-7734, 1992."                          
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "CHRISTENSENETAL2001"               
 REFERENCE_DESC                 = "Christensen, P.R., J.L. Bandfield, 
V.E. Hamilton, S.W. Ruff, H.H. Kieffer, T.N. Titus, M.C. Malin,       
R.V. Morris, M.D. Lane, R.L. Clark, B.M. Jakosky, M.T. Mellon,        
J.C. Pearl, B.J. Conrath, M.D. Smith, R.T. Clancy, R.O. Kuzmin,       
T. Roush, G.L. Mehall, N. Gorelick, K. Bender, K. Murray, S. Dason,   
E. Greene, S. Silverman, and M. Greenfield, Mars Global Surveyor      
Thermal Emission Spectrometer experiment: investigation description   
and surface science results, J. Geophys. Res., 106, E10, 23823-23871, 
2001."                                                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "CLANCYETAL2000"                    
 REFERENCE_DESC                 = "Clancy, R.T., B.J. Sandor,         
M.J. Wolff, P.R. Christensen, M.D. Smith, J.C. Pearl, B.J. Conrath,   
and R.J. Wilson, An Intercomparison of Ground-Based Millimeter, MGS   
TES, and Viking Atmospheric Temperature Measurements: Seasonal and    
Interannual Variability of Temperatures and Dust Loading in the       
Global Mars Atmosphere, Journal of Geophysical Research, 105,         
9553-9571, 2000."                                                     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "DAVIESETAL1989"                    
 REFERENCE_DESC                 = "Davies, M.E., V.K. Abalakin,       
M. Bursa, G.E. Hunt, J.H. Lieske, B. Morando, R.H. Rapp, P.K.         
Seidelmann, A.T. Sinclair, and Yu.S. Tyuflin, Report of the           
IAU/IAG/COSPAR Working Group on Cartographic Coordinates and          
Rotational Elements of the Planets and Satellites: 1988, Celestial    
Mechanics and Dynamical Astronomy, 46, 187-204, 1989."                
END_OBJECT             = REFERENCE                                    
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "DAVIESETAL1992B"                   
 REFERENCE_DESC                 = "Davies, M. E., V. K. Abalakin,     
A. Brahic, M. Bursa, B. H. Chovitz, J. H. Lieske, P. K. Seidelmann,   
A. T. Sinclair, and Y. S. Tjuflin, Report of the IAU/IAG/COSPAR       
working group on Cartographic Coordinates and Rotational Elements     
of the Planets and Satellites: 1991, Celestial Mechanics and          
Dynamical Astronomy, 53, 377-397, 1992."                              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "DAVIESETAL1995"                    
 REFERENCE_DESC                 = "Davies, M. E., V. K. Abalakin,     
M. Bursa, J. H. Lieske, B. Morando, D. Morrison, P. K. Seidelmann,    
A. T. Sinclair, B. Yallop, and Y. S. Tjuflin, Report of the           
IAU/IAG/COSPAR Working Group on Cartographic Coordinates and          
Rotational Elements of the Planets and Satellites: 1994, Celestial    
Mechanics and Dynamical Astronomy, 63, 127-148, 1995."                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "DSN810-5"                          
 REFERENCE_DESC                 = "Deep Space Network / Flight        
Project Interface Design Book, Document 810-5, Jet Propulsion         
Laboratory, Pasadena, CA."                                            
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ESTABROOKETAL1995"                 
 REFERENCE_DESC                 = "Estabrook, F.B., and               
H.D. Wahlquist, Response of Doppler Spacecraft Tracking to            
Gravitational Radiation, Gen. Rel. Grav., 6, 439-447, 1995."          
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "FJELDBOETAL1971"                   
 REFERENCE_DESC                 = "Fjeldbo, G., A.J. Kliore,          
and V.R. Eshleman, The Neutral Atmosphere of Venus as Studied         
with the Mariner V Radio Occultation Data, Astron. J., 76,            
123-140, 1971."                                                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "GEO-10REVD"                        
 REFERENCE_DESC                 = "DSN Geometry and Spacecraft        
Visibility, Document 810-5, Rev. D, Vol. 1, DSN/Flight Project        
Interface Design, Jet Propulsion Laboratory, Pasadena, CA, 1987."     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "HINSONETAL1999"                    
 REFERENCE_DESC                 = "Hinson, D.P., R.A. Simpson,        
J.D. Twicken, G.L. Tyler, and F.M. Flasar, Initial Results from       
Radio Occultation Measurements with Mars Global Surveyor, Journal     
of Geophysical Research, 104, 26997-27012, 1999."                     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "HINSONETAL2001"                    
 REFERENCE_DESC                 = "Hinson, D.P., G.L. Tyler,          
J.L. Hollingsworth, and R.J. Wilson, Radio Occultation                
Measurements of Forced Atmospheric Waves on Mars, Journal             
of Geophysical Research, 106, 1463-1480, 2001."                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "HINSONETAL2004"                    
 REFERENCE_DESC                 = "Hinson, D.P., M.D. Smith,          
and B.J. Conrath, Comparison of Atmospheric Temperatures              
Obtained through Infrared Sounding and Radio Occultation by           
Mars Global Surveyor, Journal of Geophysical Research, 109,           
E12002, doi:10.1029/2004JE002344, 2004."                              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "JPLD-12088"                        
 REFERENCE_DESC                 = "Mars Global Surveyor Project,      
Mission Plan, Final Version (MGS 542-405), JPL Document D-12088,      
Jet Propulsion Laboratory, Pasadena, CA, 1995."                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "JPLD-14027"                        
 REFERENCE_DESC                 = "Mars Global Surveyor Project,      
Telecommunications System Operations Reference Handbook, Version 2.1  
(MGS 542-257), JPL Document D-14027, Jet Propulsion Laboratory,       
Pasadena, CA, 1996."                                                  
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "JPLD-16765"                        
 REFERENCE_DESC                 = "Deep Space Mission System (DSMS)   
External Interface Specification (820-013, JPL D-16765), Radio        
Science Receiver Standard Formatted Data Unit (SFDU),                 
Jet Propulsion Laboratory, Pasadena, CA, 2001."                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "KAULA1966"                         
 REFERENCE_DESC                 = "Kaula, W.M., Theory of Satellite   
Geodesy, Blaisdell, Waltham, MA, 1966."                               
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "KONOPLIV&SJOGREN1995"              
 REFERENCE_DESC                 = "Konopliv, A. S., and W. L.         
Sjogren, The JPL Mars Gravity Field, Mars50C, Based upon Viking       
and Mariner 9 Doppler Tracking Data, Jet Propulsion Laboratory        
Publication 95-5, Pasadena, CA., 73 pp., 1995."                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "LEMOINEETAL1999"                   
 REFERENCE_DESC                 = "Lemoine, F.G., D.D. Rowlands,      
D.E. Pavlis, D.S. Chinn, S.B. Luthcke, G.A. Neumann, and D.E. Smith,  
Paper AAS 99-147, AAS/AIAA Space Flight Mechanics Meeting,            
Breckenridge, CO, 7-10 February 1999."                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "LEMOINEETAL1999B"                  
 REFERENCE_DESC                 = "Lemoine, F.G., D.D. Rowlands,      
D.E. Smith, D.S. Chinn, D.E. Pavlis, S.B. Luthcke, G.A. Neumann,      
and M.T. Zuber, Orbit Determination for Mars Global Surveyor During   
Mapping, Astrodynamics Specialist Conference, Girdwood, Alaska,       
16-19 August 1999."                                                   
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "LEMOINEETAL2001"                   
 REFERENCE_DESC                 = "Lemoine, F.G., D.E. Smith,         
D.D. Rowlands, M.T. Zuber, G.A. Neumann, D.S. Chinn, and              
D.E. Pavlis, An Improved Solution for the Gravity Field of Mars       
(GMM-2B) from Mars Global Surveyor, Journal of Geophysical            
Research, 106, 23359-23376, 2001."                                    
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "LERCH1991"                         
 REFERENCE_DESC                 = "Lerch, F.J., Optimum Data          
Weighting and Error Calibration for Estimation of Gravitational       
Parameters, Bulletin of Geodesy, 65, 44-52, 1991."                    
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "MALINETAL1992"                     
 REFERENCE_DESC                 = "Malin, M.C., G.E. Danielson,       
A.P. Ingersoll, H. Masursky, J. Veverka, M.A. Ravine, and             
T.A. Soulanille, Mars Observer Camera, J. Geophys. Res.,              
97, 7699-7718, 1992."                                                 
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "MALIN&EDGETT2001"                  
 REFERENCE_DESC                 = "Malin, M.C., and K.S. Edgett,      
Mars Global Surveyor Mars Orbiter Camera: interplanetary cruise       
through primary mission, J. Geophys. Res., 106, E10, 23429-23570,     
2001."                                                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "MANNUCCIETAL1998"                  
 REFERENCE_DESC                 = "Mannucci, A.J., B.D. Wilson,       
D.N. Yuan, C.H. Ho, U.J. Lindqwister, and T.F. Runge, A Global        
Mapping Technique for GPS-Derived Ionospheric Total Electron          
Content Measurements, Radio Science, 33, 565-582, 1998."              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "MARTIN&MURPHY2001"                 
 REFERENCE_DESC                 = "Martin, T.Z., and J.R. Murphy,     
A martian year of mapping by the MGS Horizon Science Experiment,      
Bull. Amer. Astro. Soc., 33, 3, 1072-1073, 2001."                     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
REFERENCE_KEY_ID                = "MITCHELLETAL2001"                  
REFERENCE_DESC                  = "Mitchell, D.L., R.P. Lin,          
C. Mazelle, H. Reme, P.A. Cloutier, J.E.P. Connerney, M.H. Acuna,     
and N.F. Ness, Probing Mars' crustal magnetic field and ionosphere    
with the MGS Electron Reflectometer, Journal of Geophysical Research, 
106, E10, 23418-23427, 2001."                                         
END_OBJECT = REFERENCE                                                
                                                                      
OBJECT                          = REFERENCE                           
REFERENCE_KEY_ID                = "SEIDELMANNETAL2002"                
REFERENCE_DESC                  = "Seidelmann, P.K., V.K. Abalakin,   
M. Bursa, M.E. Davies, C. de Bergh, J.H. Lieske, J. Oberst,           
J.L. Simon, E.M. Standish, P. Stooke, and P.C. Thomas, Report of      
the {IAU/IAG} working group on cartographic coordinates and           
rotational elements of the planets and satellites: 2000, Cel.         
Mech. Dyn. Astron., 82, 83-110, 2002."                                
END_OBJECT             = REFERENCE                                    
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SIMPSON1993"                       
 REFERENCE_DESC                 = "Simpson, R.A., Spacecraft          
Studies of Planetary Surfaces Using Bistatic Radar, IEEE              
Transactions on Geoscience and Remote Sensing, 31, 465-482,           
1993."                                                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SIMPSON&TYLER2001"                 
 REFERENCE_DESC                 = "Simpson, R.A., and G.L. Tyler,     
Mars Global Surveyor bistatic radar probing of the MPL/DS2            
target area, Icarus, 152, 70-74, 2001."                               
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SMITHETAL1993"                     
 REFERENCE_DESC                 = "Smith, D.E., F.J. Lerch, R.S.      
Nerem, M.T. Zuber, G.B. Patel, S.K. Fricke, and F.G. Lemoine,         
An Improved Gravity Model for Mars: Goddard Mars Model 1,             
Journal of Geophysical Research, 98, 20871-20889, 1993."              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SMITHETAL1999"                     
 REFERENCE_DESC                 = "Smith, D.E., W.L. Sjogren,         
G.L. Tyler, G. Balmino, F.G. Lemoine, and A.S. Konopliv, The          
Gravity Field of Mars: Results from Mars Global Surveyor,             
Science, 286, 94-97, 1999."                                           
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SMITHETAL2001B"                    
 REFERENCE_DESC                 = "Smith, D.E., M.T. Zuber,           
H.V. Frey, J.B. Garvin, J.W. Head, D.O. Muhleman, G.H. Pettengill,    
R.J. Phillips, S.C. Solomon, H.J. Zwally, W.B. Banerdt, T.C. Duxbury, 
M.P. Golombek, F.G. Lemoine, G.A. Neumann, D.D. Rowlands,             
O. Aharonson, P.G. Ford, A.B. Ivanov, C.L. Johnson, P.J. McGovern,    
J.B. Abshire, R.S. Afzal, and X. Sun, Mars Orbiter Laser Altimeter:   
experiment summary after the first year of global mapping of Mars,    
J. Geophys. Res., 106, E10, 23689-23722, 2001."                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "SNYDER1987"                        
 REFERENCE_DESC                 = "Snyder, J.P., Map Projections -    
A Working Manual, U. S. Geological Survey Professional Paper 1395,    
383 pp., 1987."                                                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "TRACADISETAL2001"                  
 REFERENCE_DESC                 = "Tracadis, P.W., M.T. Zuber,        
D.E. Smith, and F.G. Lemoine, Density Structure of the Upper          
Thermosphere of Mars from Measurements of Air Drag on the Mars        
Global Surveyor Spacecraft, Journal of Geophysical Research,          
106, 23349-23357, 2001."                                              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "TYLERETAL1992"                     
 REFERENCE_DESC                 = "Tyler, G.L., G. Balmino,           
D.P. Hinson, W.L. Sjogren, D.E. Smith, R. Woo, S.W. Asmar, M.J.       
Connally, C.L. Hamilton, and R.A. Simpson, Radio Science              
Investigations with Mars Observer, Journal of Geophysical             
Research, 97, 7759-7779, 1992."                                       
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "TYLERETAL2001"                     
 REFERENCE_DESC                 = "Tyler, G.L., G. Balmino,           
D.P. Hinson, W.L. Sjogren, D.E. Smith, R.A. Simpson, S.W. Asmar,      
P. Priest, and J.D. Twicken, Radio science observations with          
Mars Global Surveyor: Orbit insertion through one Mars year in        
mapping orbit, Journal of Geophysical Research, 106,                  
23327-23348, 2001."                                                   
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "WITHERSETAL2005"                   
 REFERENCE_DESC                 = "Withers, P., M. Mendillo,          
H. Rishbeth, D.P. Hinson, and J. Arkani-Hamed, Ionospheric            
characteristics above Martian crustal magnetic anomalies,             
Geophysical Research Letters, 32, doi 10.1029/2005GL023483,           
2005."                                                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "WOO1993"                           
 REFERENCE_DESC                 = "Woo, R., Spacecraft Radio          
Scintillation and Solar System Exploration, Wave Propagation          
in Random Media (Scintillation), Society of Photo-Optical             
Instrumentation Engineers, Bellingham, WA, 1993."                     
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "YEH&LIU1972"                       
 REFERENCE_DESC                 = "Yeh, K.C., and C.H. Liu,           
Theory of Ionospheric Waves, 464 pp, Academic Press, San Diego,       
1972."                                                                
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "YUANETAL2001"                      
 REFERENCE_DESC                 = "Yuan, D.-N., W.L. Sjogren,         
A.S. Konopliv, and A.B. Kucinskas, Gravity Field of Mars:             
A 75th Degree and Order Model, Journal of Geophysical Research,       
106, 23377-23401, 2001."                                              
END_OBJECT                      = REFERENCE                           
                                                                      
OBJECT                          = REFERENCE                           
 REFERENCE_KEY_ID               = "ZUBERETAL1992"                     
 REFERENCE_DESC                 = "Zuber, M.T., D.E. Smith,           
S.C. Solomon, D.O. Muhleman, J.W. Head, J.B. Garvin, J.B. Abshire,    
and J.L. Bufton, The Mars Observer Laser Altimeter Investigation,     
J. Geophys. Res., 97, 7781-7797, 1992."                               
END_OBJECT                      = REFERENCE                           
                                                                      
END