PDS: The Planetary Atmospheres Node
Apr 5, 2006 - Ls 34.7 MY 28 to Aug 30, 2006 - Ls 99.6 MY 28
Examples of the MGS Radio Science atmospheric temperature profiles derived from radio occultation measurements (left figure), as well as an indication of the latitude locations of all 21243 MGS Radio Science derived vertical temperature profiles (right figure above) are shown. Data from the spacecraft accelerometers was used to derive the spacecraft deceleration during each aerobraking drag pass.
Useful Mission Documents
Description of the DATA
For each drag pass (spanning orbits 18 - 445 of the mission) there is an individual ASCII PROFILE file containing derived density values at 1-second intervals for a time period spanning several hundred seconds centered upon the periapse time. There is also a separate ASCII ALTITUDE file which provides derived density and scale height values at specified altitudes (100 km, 110 km, etc.) for both the inbound and outbound portions of the orbit/drag pass as well as at the periapsis altitude, and 1.26 nanobar pressure level during both the inbound and outbound portions of the orbit/drag pass.
The data contained within the MGS AEROBRAKING PDS archive MROA_0001 are provided in either the ALTITUDE or PROFILE folders within the DATA folder. Within both the PROFILE and ALTITUDE folders a user will find subfolders containing ~100 drag passes of data, with each drag pass consisting of a single ASCII file. For instance, the data presented in the left figure above are from the L2P306.TAB file located within the P300_399 folder within the PROFILE folder, while the data presented in the right-side figure above are located in the L3P306.TAB file located in the P300_399 folder located within the ALTITUDE folder
Retrieving the data volume
Raw Data
Derived Data
Note:
Derived spacecraft aerobraking data, with archive structures very similar to this MRO aerobraking archive, are also available from the MGS mission and the Mars Odyssey mission archives.
Useful Mission Documents
Description of data volume
Mission Description
Spacecraft Description
Instrument Description
Guide to Accelerometer products
Calibration Data
References
Mission Description
Spacecraft Description
Instrument Description
Guide to Accelerometer products
Calibration Data
References
Description of the DATA
For each drag pass (spanning orbits 18 - 445 of the mission) there is an individual ASCII PROFILE file containing derived density values at 1-second intervals for a time period spanning several hundred seconds centered upon the periapse time. There is also a separate ASCII ALTITUDE file which provides derived density and scale height values at specified altitudes (100 km, 110 km, etc.) for both the inbound and outbound portions of the orbit/drag pass as well as at the periapsis altitude, and 1.26 nanobar pressure level during both the inbound and outbound portions of the orbit/drag pass.
The data contained within the MGS AEROBRAKING PDS archive MROA_0001 are provided in either the ALTITUDE or PROFILE folders within the DATA folder. Within both the PROFILE and ALTITUDE folders a user will find subfolders containing ~100 drag passes of data, with each drag pass consisting of a single ASCII file. For instance, the data presented in the left figure above are from the L2P306.TAB file located within the P300_399 folder within the PROFILE folder, while the data presented in the right-side figure above are located in the L3P306.TAB file located in the P300_399 folder located within the ALTITUDE folder
Retrieving the data volume
Raw Data
Derived Data
Accelerometer Profile data Description
Access to data
Accelerometer altitude data Description
Access to data
Access to data
Accelerometer altitude data Description
Access to data
Note:
Derived spacecraft aerobraking data, with archive structures very similar to this MRO aerobraking archive, are also available from the MGS mission and the Mars Odyssey mission archives.
