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icon_stat_globe.gif History of Orbital Parameters

Updated the First Week of Every Month

MARS GLOBAL SURVEYOR ORBITAL INFORMATION
AEROBRAKING ORBIT ELEMENTS

These are classical, osculating orbit elements at periapsis (perifocus) and apoapsis (apofocus) with the epochs in ephemeris time (ET).

The coordinate system is defined as follows:
Mars-centered orbit,
Reference Plane: Mars mean equator of date,
X-Axis: Mars mean equator of date and Earth mean equator of J2000

( IAU vector Of epoch J2000 ).

Related quantities:
GM Mars ( km**3/s**2 ) 42,828.314

Key to Abreviations:

DOY - Day of Year
SMA - Semimajor Axis
Ecc - Eccentricity
Inc - Inclination
Arg Peri - Argument of Periapsis
True Anom - True Anomaly

See: Explanation of Orbital Parameters


 Final Tables for the First Part of Aerobraking and the SPO Orbit
 ORBITAL PARAMETERS AT PERIAPSIS (168 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (168 KB File - Slow Loading Table)

 Tables for the Second Part of Aerobraking - Updated 10-FEB-99
 ORBITAL PARAMETERS AT PERIAPSIS (209 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (209 KB File - Slow Loading Table)

 Tables for TMO Maneuver to Start of Mapping - Updated 22-MAR-99
 ORBITAL PARAMETERS AT PERIAPSIS (116 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (116 KB File - Slow Loading Table)

 Tables for Mapping Phase Orbits 1-724 -Updated 14-JUL-99
 ORBITAL PARAMETERS AT PERIAPSIS (208 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (208 KB File - Slow Loading Table)
 Tables for Mapping Phase Orbits 725-1450 - Updated 14-JUL-99
 ORBITAL PARAMETERS AT PERIAPSIS (208 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (208 KB File - Slow Loading Table)

 Tables for Mapping Phase Orbits 1-3757 - Updated 14-JAN-2000
 ORBITAL PARAMETERS AT PERIAPSIS (1024 KB File - Slow Loading Table)
 ORBITAL PARAMETERS AT APOAPSIS (1024 KB File - Slow Loading Table)

 Tables for Mapping Phase Orbits 1-5400 - Updated 31-MAY-2000

 ORBITAL PARAMETERS AT PERIAPSIS - TABLE A (Slow Loading Table)

 ORBITAL PARAMETERS AT PERIAPSIS - TABLE B (Slow Loading Table)

 ORBITAL PARAMETERS AT APOAPSIS - TABLE A (Slow Loading Table)

ORBITAL PARAMETERS AT APOAPSIS - TABLE B (Slow Loading Table)

 Files for Mapping Phase Orbits: 1-8388 -- Updated 09-MAR-2001

Note: Due to slow table load and build times, we are now releasing this data as a TXT file. See key for definition of data and example data.

 ORBITAL PARAMETERS AT PERIAPSIS - TABLE A ( TXT File 695 KB )

 ORBITAL PARAMETERS AT PERIAPSIS - TABLE B ( TXT File 695 KB )

 ORBITAL PARAMETERS AT APOAPSIS - TABLE A ( TXT File 695 KB )

ORBITAL PARAMETERS AT APOAPSIS - TABLE B ( TXT File 695 KB )

 Files for Mapping Phase Orbits: 8126-8893 -- Updated 09-MAR-2001

Note: Due to slow table load and build times, we are now releasing this data as a TXT file. See key for definition of data and example data.

 ORBITAL PARAMETERS AT PERIAPSIS - ( TXT File 126 KB )
ORBITAL PARAMETERS AT APOAPSIS - ( TXT File 126 KB )

 Files for the Beginning of Mapping Phase Orbits to Present: MAR'99 - DEC'04

Note: These files are so large that we are releasing them as compressed gzip'ed text files. They may be decompressed under UNIX or on the PC and MAC with WINZIP. The decompressed files can be viewed with a browser or any text editing program, e.g. Wordpad. Internet Explorer (IE) can view them directly with proper plugins for gz files.

See key for definition of data and example data.

 ORBITAL PARAMETERS AT PERIAPSIS ( optg.Periapsis_Web.tbl.gz 1,938 KB )
ORBITAL PARAMETERS AT APOAPSIS - ( optg.Apoapsis_Web.tbl.gz 1,917 KB )

 


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