+Mission: *.1 ++Name: PHOBOS-2 ++SatZond: Z ++GeoHelBoth: H ++Launch: 88/07/12 --TrajectFile: N ++ShortDescription: Russian expedition to Mars-Phobos ++LongDescription: Russian space zond for exploration of Phobos, a natural satellite of Mars. A couple of zonds, PHOBOS-1 and PHOBOS-2 have been launched in a 5-day interval. Main axis of the spacecraft is sunward directed with precision of ~10 degrees. ++Instrument: *.1 +++Name: VFS-F +++PI: Dr. Vladimir I. Tulupov +++ResearchGroup: Heliosphere Physics Laboratory +++Lab: Theoretical and Applied Space Physics Division +++Institution: Skobeltsyn Institute of Nuclear Physics, Moscow State University +++Address: Vorobyovy Gory, Moscow, 119899, Russia +++Fax: +7-095-939-2488 (fax/voice) +++Phone: +7-095-939-5097 +++E-mail: tulupov@taspd.npi.msu.su +++ShortDescription: Measuring of >30 MeV proton flux during the mission +++LongDescription: VFS-F has been designed as a very simple monitor of charged particles in the interplanetary space. There are three closely placed and mutually perpendicularly oriented gas-discharge counters of the SBM-20 series. Spacecraft memory is used for data storing; time resolution is about one hour. All sensors measure flux intensity continuously. Since all counters demonstrate very similar results only the data from one detector is presented. +++Publication: +++AcknowledgingTo: TASPD SINP MSU +++DataSet: *.1 ++++ID: F1 ++++StartDate: 88/07/13 ++++StopDate: 89/03/23 ++++TimeResolution: 1 hour ++++ApproxVolume: 90 kB ++++DataSupportContact: Dr. Nickolay N. Pavlov ++++Institution: Skobeltsyn Institute of Nuclear Physics, Moscow State University ++++Address: Vorobyovy Gory, Moscow, 119899, Russia ++++Fax: +7-095-939-2488 (fax/voice) ++++Phone: +7-095-939-5928 ++++E-mail: nnpavlov@taspd.npi.msu.su ++++ShortDescription: Ep>30MeV; 1-hour time res.; normal to Sun direction ++++LongDescription: Data on protons of Ep>30 MeV energy (gas-discharge counter) from the direction perpendicular to the line Sun-spacecraft. Time resolution is 20 minutes. All sensors measure flux intensity continuously. ++++Column: *.1 +++++LongLegend: Ep>30MeV from normal-to-Sun direction +++++ShortLegend: p>30n +++++InternalName: D1 +++++Units: 1/s +++++MinValueApprox: 15.1 +++++MaxValueApprox: 134.6 +++++FillerNODATA: -9.999E+99 +++++Species: *.1 ++++++Name: proton ++++++Energy: >30 MeV ++++++DirectionWhereFrom: Sun ++++++GeomFactor: 13 cm2_sr +++++Species: *.2 ++++++Name: electron ++++++Energy: >2 MeV ++++++DirectionWhereFrom: Sun ++++++GeomFactor: 13 cm2_sr +++++Species: *.3 ++++++Name: proton ++++++Energy: >500 MeV ++++++DirectionWhereFrom: omni ++++++GeomFactor: 54 cm2_sr ++++++ShortDescription: >30 MeV protons from normal-to-Sun + others ++++++LongDescription: Gas-discharge counter (SBM-20) with minimum shielding of ~1 g/cm2 Al for particles arriving from the direction perpendicular to the line Sun-spacecraft; the thresholds are: Ep=30 MeV and Ee=2 MeV. For other directions the threshold is Ep=500 MeV. All species are measured in mix, although the typically higher presence of >30 MeV protons above others makes the channel mostly recording the data on this species. Spacecraft is spinned with a period of 0.2-1 hour. ********************************