This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Mapping (MAP) phase of the Mars Global Surveyor (MGS) mission. The radio observations were carried out using the MGS spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The observations were designed to test the spacecraft radio system, the DSN ground system, and MGS operations procedures; to be used in generating high-resolution gravity field models of Mars; and for estimating density and structure of the Mars atmosphere. A small number of surface scattering experiments were also conducted. Of most interest are likely to be the Orbit Data File and Original Data Record files, in the ODF and ODR directories, respectively, which provided the raw input to gravity and atmospheric investigations. The MAP phase extended from March 1999 through January 2001. Data were organized in approximately chronological order and delivered on a set of 184 CD volumes at the rate of 2-3 CD's per week. Typical volume of a one-day ODF was 300-400 kB. Typical volume of an ODR was 5-10 MB, and there were typically 8-16 ODR's per day depending on DSN schedules and observing geometry.

This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Mapping (MAP) phase of the Mars Global Surveyor (MGS) mission. The radio observations were carried out using the MGS spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The observations were designed to test the spacecraft radio system, the DSN ground system, and MGS operations procedures; to be used in generating high-resolution gravity field models of Mars; and for estimating density and structure of the Mars atmosphere. A small number of surface scattering experiments were also conducted. Of most interest are likely to be the Orbit Data File and Original Data Record files, in the ODF and ODR directories, respectively, which provided the raw input to gravity and atmospheric investigations. The MAP phase extended from March 1999 through January 2001. Data were organized in approximately chronological order and delivered on a set of 184 CD volumes at the rate of 2-3 CD's per week. Typical volume of a one-day ODF was 300-400 kB. Typical volume of an ODR was 5-10 MB, and there were typically 8-16 ODR's per day depending on DSN schedules and observing geometry.

This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Extended Mission (EXT) phase of the Mars Global Surveyor (MGS) mission. The radio observations were carried out using the MGS spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The observations were designed to test the spacecraft radio system, the DSN ground system, and MGS operations procedures; to be used in generating high-resolution gravity field models of Mars; and for estimating density and structure of the Mars atmosphere. Of most interest are likely to be the Orbit Data File and Radio Science Receiver files, in the ODF and RSR directories, respectively, which provided the raw input to gravity and atmospheric investigations. The EXT phase began on 1 February 2001. Data were organized in approximately chronological order and delivered on a set of several hundred CD-WO volumes at the rate of 2-3 CD's per week. Typical volume of a one-day ODF was 300-400 kB. Typical volume of an RSR ranged from 5 to 10 MB, and there could be 0-30 RSR's per day depending on DSN schedules and observing geometry.

This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Extended Mission (EXT) phase of the Mars Global Surveyor (MGS) mission. The radio observations were carried out using the MGS spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The observations were designed to test the spacecraft radio system, the DSN ground system, and MGS operations procedures; to be used in generating high-resolution gravity field models of Mars; and for estimating density and structure of the Mars atmosphere. Of most interest are likely to be the Orbit Data File and Radio Science Receiver files, in the ODF and RSR directories, respectively, which provided the raw input to gravity and atmospheric investigations. The EXT phase began on 1 February 2001. Data were organized in approximately chronological order and delivered on a set of several hundred CD volumes at the rate of 2-3 CD's per week or DVD volumes at the rate of about 2 per month. Typical volume of a one-day ODF was 300-400 kB. Typical volume of an RSR was 5-10 MB, and there could be 0-30 RSR's per day depending on DSN schedules and observing geometry.

This data set contains archival results from radio science investigations conducted during the Mars Global Surveyor (MGS) mission. Radio measurements were made using the MGS spacecraft and Earth-based stations of the NASA Deep Space Network (DSN). The data set includes high-resolution spherical harmonic models of Mars' gravity field generated by groups at the Jet Propulsion Laboratory and Goddard Space Flight Center, covariance matrices for some models, and maps for some models; these results were derived from raw radio tracking data. Also included are profiles of atmospheric temperature and pressure and ionospheric electron density, derived from phase measurements collected during radio occultations. The data set also includes analyses of transient surface echoes observed close to occultations during the first few years of MGS operations and a single set of power spectra acquired during a quasi-specular bistatic radar experiment in 2000. The atmospheric and surface investigations were conducted by Radio Science Team members at Stanford University. The data set also includes 93 line-of-sight acceleration profiles derived at JPL from radio tracking data collected near periapsis while Mars Global Surveyor was in its Science Phasing Orbit and below its nominal Mapping altitude of 400 km. The data were delivered to PDS in approximately chronological order at the rate of one CD-WO volume (typically 100 MB) every three months.

This data set contains archival results from radio science investigations conducted during the Mars Global Surveyor (MGS) mission. Radio measurements were made using the MGS spacecraft and Earth-based stations of the NASA Deep Space Network (DSN). The data set includes high-resolution spherical harmonic models of Mars' gravity field generated by groups at the Jet Propulsion Laboratory and Goddard Space Flight Center, covariance matrices for some models, and maps for some models; these results were derived from raw radio tracking data. Also included are profiles of atmospheric temperature and pressure and ionospheric electron density, derived from phase measurements collected during radio occultations. The data set also includes analyses of transient surface echoes observed close to occultations during the first few years of MGS operations. The atmospheric and surface investigations were conducted by Radio Science Team members at Stanford University. The data set also includes 93 line-of-sight acceleration profiles derived at JPL from radio tracking data collected near periapsis while Mars Global Surveyor was in its Science Phasing Orbit and below its nominal Mapping altitude of 400 km. The data were delivered to PDS in approximately chronological order at the rate of one CD-WO volume (typically 100 MB) every three months.

The Mars Global Surveyor (MGS) Radio Science (RS) Raw Data Archive (RDA) is a time-ordered collection of raw and partially processed data collected during the MGS Mission to Mars. For more information on the investigations proposed see [TYLERETAL1992].

The Mars Global Surveyor (MGS) Radio Science (RS) Raw Data Archive (RDA) is a time-ordered collection of raw and partially processed data collected during the MGS Mission to Mars. For more information on the investigations proposed see [TYLERETAL1992].

This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Mars Reconnaissance Orbiter (MRO) mission. The radio observations were carried out using the MRO spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The data set was designed primarily to support generation of high-resolution gravity field models for Mars and secondarily for estimating density and structure of the Mars atmosphere. Of most interest are likely to be the Orbit Data Files and Radio Science Receiver files in the ODF and RSR directories, respectively, which provided the raw input to gravity and atmospheric investigations, as well as the ionospheric and tropospheric media calibration files in the ION and TRO directories, respectively.

This data set contains archival raw, partially processed, and ancillary/supporting radio science data acquired during the Mars Reconnaissance Orbiter (MRO) mission. The radio observations were carried out using the MRO spacecraft and Earth-based receiving stations of the NASA Deep Space Network (DSN). The data set was designed primarily to support generation of high-resolution gravity field models for Mars and secondarily for estimating density and structure of the Mars atmosphere. Of most interest are likely to be the Orbit Data Files and Radio Science Receiver files in the ODF and RSR directories, respectively, which provided the raw input to gravity and atmospheric investigations, as well as the ionospheric and tropospheric media calibration files in the ION and TRO directories, respectively.