CCSD3ZS00001markerzzCCSD3FF0000500000001CCSD3CS00004markeraa ADIDNAME = NSSD0226; DDRID = NSSD0231; CCSD$$MARKERmarkeraaCCSD3KS00007markerbb PACKAGE_TYPE = RP; REVISION_NUMBER = 0; SUBMISSION_DATE = 1995-05-26; REVISABLE = YES; RELEASABLE = YES; TITLE = "San Marco - Retarding Potential Analyzer (RPA) file"; DESCRIPTION = "File format descriptions for the Retarding Potential Analyzer (RPA) and Ion Drift Meter (IDM) files from the San Marco spacecraft"; REVISION_COMMENT = "Original Version"; BEGIN_GROUP = ORIGINATOR; NAME = "Coley, Dr. William Robin"; AFFILIATION = "University of Texas at Dallas"; EMAIL = ( Internet, "coley@utdallas.edu" ); PHONE = "+1 214 883 2851"; FAX = "+1 214 883 2761"; POSTAL_ADDRESS = ("William B. Hanson Center for Space Sciences" ,"University of Texas at Dallas" ,"M.S. Fo2.2" ,"P.O. Box 830688" ,"Richardson, TX 75083-0688 USA" ); END_GROUP = ORIGINATOR; BEGIN_GROUP = REVISER; NAME = "Coley, Dr. William Robin"; AFFILIATION = "University of Texas at Dallas"; EMAIL = ( Internet, "coley@utdallas.edu" ); PHONE = "+1 214 883 2851"; FAX = "+1 214 883 2761"; POSTAL_ADDRESS = ("William B. Hanson Center for Space Sciences" ,"University of Texas at Dallas" ,"M.S. Fo2.2" ,"P.O. Box 830688" ,"Richardson, TX 75083-0688 USA" ); END_GROUP = REVISER; BEGIN_GROUP = REVISER; NAME = "Power, Robert A."; AFFILIATION = "University of Texas at Dallas"; EMAIL = ( Internet, "power@utd500utdallas.edu" ); EMAIL = ( NSI/DECnet, "UTSPAN::UTADNX::UTDSSA::POWER" ); PHONE = "+1 214 883 2851"; FAX = "+1 214 883 2761"; POSTAL_ADDRESS = ("William B. Hanson Center for Space Sciences" ,"University of Texas at Dallas" ,"M.S. Fo2.2" ,"P.O. Box 830688" ,"Richardson, TX 75083-0688 USA" ); END_GROUP = REVISER; CCSD$$MARKERmarkeraaNSSD3KS0230markerbb PROJECT_NAME = ""; MISSION_NAME = "SAN MARCO"; INSTRUMENT_NAME = "RETARDING POTENTIAL ANALYZER (RPA)"; CCSD$$MARKERmarkerbbCCSD3DS00002markercc TYPE_OF_FILE_NAME: RPA/IDM FILES RECORD_TYPE_NAMES: RPA_1 RECORD_TYPES: RECORD_TYPE_NAME: RPA_1 FIXED_RECORD_TYPE_LENGTH: 128 BYTES FIELD_NAME: DATE FIELD_MNEMONIC: DATE FIELD_DESCRIPTION: Year and day number of the year of the record in the form YYDDD. (e.g. 88164 is day 164 of year 1988.; Jan 1 is day 1) FIELD_RESOLUTION: 1 day FIELD_RANGE: MINIMUM_VALUE: 88111 MAXIMUM_VALUE: 88339 FIELD_IDIOSYNCRACIES: None FIELD_SYNTAX: I6 FIELD_NAME: TIME FIELD_MNEMONIC: TIME FIELD_DESCRIPTION: The universal time (UT) time of the day in milliseconds (ms). FIELD_RESOLUTION: 1 ms FIELD_RANGE: MINIMUM_VALUE: 0 ms MAXIMUM VALUE: 86399999 ms FIELD_IDIOSYNCRACIES: None FIELD_SYNTAX: I9 FIELD_NAME: RPA Ion temperature FIELD_MNEMONIC: Ti FIELD_DESCRIPTION: The ion temperature in degrees Kelvin derived from a standard voltage sweep. FIELD_RESOLUTION: 1. degree FIELD_RANGE: MINIMUM_VALUE: 500. degrees MAXIMUM_VALUE: 3000. degrees FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.0 FIELD_NAME: RPA Spacecraft potential FIELD_MNEMONIC: Psi FIELD_DESCRIPTION: The spacecraft potential in volts derived from a standard voltage sweep. FIELD_RESOLUTION: 0.001 V. FIELD_RANGE: MINIMUM_VALUE: -2.5 V. MAXIMUM_VALUE: 0.75 V. FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.2 FIELD_NAME: RDA Ion temperature FIELD_MNEMONIC: TiD FIELD_DESCRIPTION: The ion temperature in degrees Kelvin derived from a derivative voltage sweep. FIELD_RESOLUTION: 1. degree FIELD_RANGE: MINIMUM_VALUE: 500. degrees MAXIMUM_VALUE: 3000. degrees FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.0 FIELD_NAME: RDA Spacecraft potential FIELD_MNEMONIC: PsiD FIELD_DESCRIPTION: The spacecraft potential in volts derived from a derivative voltage sweep. FIELD_RESOLUTION: 0.001 V. FIELD_RANGE: MINIMUM_VALUE: -2.5 V. MAXIMUM_VALUE: 0.75 V. FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.2 FIELD_NAME: Vertical component of ion velocity FIELD_MNEMONIC: Vvert FIELD_DESCRIPTION: The component of the ion velocity parallel to the y-axis of the spacecraft (approximately vertical, a positive value indicates an upward velocity). This data comes from the ion drift meter (IDM). FIELD_RESOLUTION: 1 m/s FIELD_RANGE: MINIMUM_VALUE: -2000. m/s MAXIMUM_VALUE: 2000. m/s FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F7.0 FIELD_NAME: Horizontal component of ion velocity FIELD_MNEMONIC: Vhor FIELD_DESCRIPTION:The component of the ion velocity parallel to the z-axis of the spacecraft (approximately horizontal). When facing in the direction of motion of the spacecraft Vhor is positive to the right (southward). This data comes from the ion drift meter (IDM). FIELD_RESOLUTION: 1 m/s FIELD_RANGE: MINIMUM_VALUE: -2000. m/s MAXIMUM_VALUE: 2000. m/s FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F7.0 FIELD_NAME: Ion density FIELD_MNEMONIC: Ni FIELD_DESCRIPTION: The ion density in ions/cc. FIELD_RESOLUTION: 1. ion/cc. FIELD_RANGE: MINIMUM_VALUE: 1000.ions/cc MAXIMUM_VALUE: 6.0E+6 ions/cc FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F9.0 FIELD_NAME: H+ concentration FIELD_MNEMONIC: H+ FIELD_DESCRIPTION: The concentration of H+ in ions/cc. FIELD_RESOLUTION: 1. ion/cc FIELD_RANGE: MINIMUM_VALUE: 0 ions/cc MAXIMUM_VALUE: 6.E6 ions/cc FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F9.0 FIELD_NAME: O+ concentration FIELD_MNEMONIC: O+ FIELD_DESCRIPTION: The concentration of O+ in ions/cc. FIELD_RESOLUTION: 1. ion/cc FIELD_RANGE: MINIMUM_VALUE: 0 ions/cc MAXIMUM_VALUE: 6.E6 ions/cc FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F9.0 FIELD_NAME: Molecular ions FIELD_MNEMONIC: Mols FIELD_DESCRIPTION: The concentration of Molecular ions in ions/cc. FIELD_RESOLUTION: 1. ion/cc. FIELD_RANGE: MINIMUM_VALUE: 0 ions/cc MAXIMUM_VALUE: 6.E6 ions/cc FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F9.0 FIELD_NAME: Dip latitude FIELD_MNEMONIC: Dlat FIELD_DESCRIPTION: The magnetic dip latitude of the spacecraft in degrees. FIELD_RESOLUTION: 0.0001 degrees FIELD_RANGE: MINIMUM_VALUE: -17.7 degrees MAXIMUM_VALUE: 15.3 degrees FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F7.2 FIELD_NAME: Altitude FIELD_MNEMONIC: Alt FIELD_DESCRIPTION: The altitude of the spacecraft in km. FIELD_RESOLUTION: 0.01 km FIELD_RANGE: MINIMUM_VALUE: 172.0 km MAXIMUM_VALUE: 594.0 km FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.1 FIELD_NAME: Geographic longitude FIELD_MNEMONIC: Glon FIELD_DESCRIPTION: The geographic longitude of the spacecraft in degrees. FIELD_RESOLUTION: 0.001 degrees FIELD_RANGE: MINIMUM_VALUE: 0.0 degrees MAXIMUM_VALUE: 360.0 degrees FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F7.2 FIELD_NAME: Geographic latitude FIELD_MNEMONIC: Glat FIELD_DESCRIPTION: The geographic latitude of the spacecraft in degrees. FIELD_RESOLUTION: 0.001 degrees FIELD_RANGE: MINIMUM_VALUE: -3.0 degrees MAXIMUM_VALUE: 3.0 degrees FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.2 FIELD_NAME: Solar local time FIELD_MNEMONIC: Slt FIELD_DESCRIPTION: The solar local time of the spacecraft in hours. FIELD_RESOLUTION: 0.0001 hours FIELD_RANGE: MINIMUM_VALUE: 0.0 hours MAXIMUM_VALUE: 24.0 hours FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F6.2 FIELD_NAME: Solar zenith angle FIELD_MNEMONIC: Sza FIELD_DESCRIPTION: The angle between the zenith and the sun. FIELD_RESOLUTION: 0.001 degrees FIELD_RANGE: MINIMUM_VALUE: 0.0 hours MAXIMUM_VALUE: 180.0 hours FIELD_IDIOSYNCRACIES: See RECORD_TYPE_ALGORITHMS FIELD_SYNTAX: F7.2 RECORD_TYPE_FIELD_RELATIONSHIPS: The order of the fields in an RPA_1 record is as follows: DATE, TIME, Ti, Psi, TiD, PsiD, Vvert, Vhor, Ni, H+, O+, Mols, Dlat, Alt, Glon, Glat, Slt, Sza RECORD_TYPE_ALGORITHMS: The real fields of an RPA_1 record are initialized with a fill value of -9999.0 and subsequently the geophysical values are inserted. Thus if there is no data available for a given parameter that particular field will contain the fill data value. MISCELLANEOUS_TYPE_OF_FILE_ATTRIBUTES: RPA/IDM files are sequential with a single type of fixed length record (RPA_1). The Vvert and Vhor fields in an RPA_1 record contain data from the ion drift meter (IDM). All other data fields use the retarding potential analyzer (RPA). The FIELD_SYNTAX: values are the appropriate fortran format field description for the associated parameter. The data file is ASCII. CCSD$$MARKERmarkerccCCSD$$MARKERmarkerzz