+Mission: *.1 ++Name: LUNA-21 ++SatZond: Z ++GeoHelBoth: H ++Launch: 73/01/08 --TrajectFile: N (in Earth's position assumed) ++ShortDescription: 21st Russian expedition to the Moon ++LongDescription: Russian space zond for exploration of the Moon. The zond reached Moon, landed and deployed a vehicle LUNOKHOD-2 in the Lemontie Bay. An instrument was mounted on LUNOKHOD and it measured particles from lunar zenith. ++Instrument: *.1 +++Name: RV-2N +++PI: Dr. Eugene A. Chuchkov +++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: chuchkov@taspd.npi.msu.su +++ShortDescription: Measuring of protons and alphas during the mission +++LongDescription: RV-2N has been designed as a monitor of charged particles travelling in the interplanetary space. There are three sensors: a gas-discharge counter D1 of the STS-5 series, and two SSD (Si) detectors: D2 and D3 of ~35 micron thickness. Spacecraft memory is used for data storing; time resolution is from one hour to one day. All sensors measure flux intensity continuously. +++Publication: +++AcknowledgingTo: TASPD SINP MSU +++DataSet: *.1 ++++ID: LK ++++StartDate: 73/02/14 ++++StopDate: 73/04/20 ++++TimeResolution: >1.5 hour ++++ApproxVolume: 2 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=1-5,>30MeV; Ea=4-8MeV; >1 hour time res.; lunar zenith direction ++++LongDescription: Data on protons of Ep>30 MeV energy (gas-discharge counter) from Sun direction; protons of Ep=1-5 MeV energy and alpha-particles of Ea=4-8 MeV, all arriving from Sun direction in the +-30 degree angle (two stand-alone SSD sensors of ~35 micron Si). Time resolution is >1 hour. All sensors measure flux intensity continuously. ++++Column: *.1 +++++LongLegend: Ep>30MeV from lunar zenith +++++ShortLegend: p>30z +++++InternalName: D1 +++++Units: 1/s +++++MinValueApprox: 17.9 +++++MaxValueApprox: 21.1 +++++FillerNODATA: -9.999E+99 +++++Species: *.1 ++++++Name: proton ++++++Energy: >30 MeV ++++++DirectionWhereFrom: Sun and then lunar zenith ++++++GeomFactor: 13 cm2_sr +++++Species: *.2 ++++++Name: electron ++++++Energy: >2 MeV ++++++DirectionWhereFrom: Sun and then lunar zenith ++++++GeomFactor: 13 cm2_sr +++++Species: *.3 ++++++Name: proton ++++++Energy: >500 MeV ++++++DirectionWhereFrom: omni on the cruise and upper semisphere - on lunar surface ++++++GeomFactor: 54 cm2_sr on the cruise and 30 cm2_sr on lunar surface ++++++ShortDescription: >30 MeV protons from Sun + others ++++++LongDescription: Gas-discharge counter (STS-5) 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. ++++Column: *.2 +++++LongLegend: Ep=1-5MeV from lunar zenith +++++ShortLegend: p1-5z +++++InternalName: D2 +++++Units: 1/s +++++MinValueApprox: 0.02 +++++MaxValueApprox: 14.3 +++++FillerNODATA: -9.999E+99 +++++Species: *.1 ++++++Name: proton ++++++Energy: 1-5 MeV ++++++DirectionWhereFrom: Sun and then lunar zenith ++++++GeomFactor: 0.05 cm2_sr ++++++ShortDescription: 1-5 MeV protons from lunar zenith ++++++LongDescription: ~35 microns of Si sensor for counting protons of Ep=1-5 MeV arriving from lunar zenith. View angle is +-30 degrees. ++++Column: *.3 +++++LongLegend: Ea=4-8MeV from lunar zenith +++++ShortLegend: a4-8z +++++InternalName: D3 +++++Units: 1/s +++++MinValueApprox: 0.001 +++++MaxValueApprox: 0.13 +++++FillerNODATA: -9.999E+99 +++++Species: *.1 ++++++Name: alpha-particle ++++++Energy: 4-8 MeV ++++++DirectionWhereFrom: Sun and then lunar zenith ++++++GeomFactor: 0.05 cm2_sr ++++++ShortDescription: 4-8 MeV alphas from lunar zenith ++++++LongDescription: ~35 microns of Si sensor for counting alpha-particles of Ea=4-8 MeV arriving from lunar zenith View angle is +-30 degrees. ********************************