/* File Format and Length */ PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = "2004-01-26; J. Diaz del Rio (ESA). v1.3" RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 84 FILE_RECORDS = 22950 FILE_NAME = "MAG00001.TAB" LABEL_RECORDS = "N/A" DATA_SET_ID = "GIO-C-MAG-4-RDR-8SEC-HALLEY-V1.0" DATA_SET_NAME = "GIOTTO MAGNETOMETER 8 SECOND DATA V1.0" PRODUCT_ID = "MAG00001" PRODUCT_TYPE = "RDR" PRODUCT_CREATION_TIME = 1992-04-30 PRODUCER_ID = "N/A" PRODUCER_FULL_NAME = "INTERNATIONAL HALLEY WATCH" PRODUCER_INSTITUTION_NAME = "GODDARD SPACE FLIGHT CENTER" MISSION_NAME = "GIOTTO" MISSION_PHASE_NAME = "HALLEY ENCOUNTER" MISSION_ID = "GIOTTO" INSTRUMENT_HOST_ID = "GIO" INSTRUMENT_HOST_NAME = "GIOTTO" INSTRUMENT_NAME = "FLUXGATE MAGNETOMETER" INSTRUMENT_ID = "MAG" TARGET_NAME = "HALLEY" TARGET_TYPE = "COMET" OBSERVATION_ID = "081001" OBSERVATION_TIME = 1986-03 START_TIME = 1986-03-12T00:00:06.772 STOP_TIME = 1986-03-14T02:59:58.772 SPACECRAFT_CLOCK_START_COUNT = "UNK" SPACECRAFT_CLOCK_STOP_COUNT = "UNK" ORBIT_NUMBER = "N/A" INSTRUMENT_TYPE = "MAGNETOMETER" INSTRUMENT_MODE_ID = "N/A" INSTRUMENT_MODE_DESC = "N/A" DATA_QUALITY_ID = "N/A" DATA_QUALITY_DESC = "N/A" PROCESSING_LEVEL_ID = 4 PROCESSING_LEVEL_DESC = "Data that have been resampled in the time or space domains in such a way that the original edited data cannot be reconstructed. Could be calibrated in addition to being resampled. NASA Level 1B" /* Record Pointer to Major Object */ ^TABLE = "MAG00001.TAB" /* Description of Objects in File */ OBJECT = TABLE INTERCHANGE_FORMAT = ASCII ROWS = 22950 ROW_BYTES = 84 COLUMNS = 12 DESCRIPTION = "The Halley centered coordinate system used in these measurements is a right handed coordinate system. It is defined so that the coordinate system has its origin at the comet's nucleus, with the XSE-axis from the nucleus to the sun, the YSE-axis parallel to the ecliptic plane in the direction of retrograde planetary motion. The ZSE- axis completes the coordinate system such that at the time of Halley's passage through the ecliptic plane it points to the ecliptic north." OBJECT = COLUMN NAME = "MEASUREMENT_DAY" DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 3 FORMAT = I3 DESCRIPTION = "DAYS SINCE THE BEGINNING OF 1985" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SPACECRAFT_EVENT_HOUR" DATA_TYPE = ASCII_INTEGER START_BYTE = 5 UNIT = "HOUR" BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SPACECRAFT_EVENT_MIN" DATA_TYPE = ASCII_INTEGER START_BYTE = 8 UNIT = "MINUTE" BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SPACECRAFT_EVENT_SEC" DATA_TYPE = ASCII_REAL START_BYTE = 11 UNIT = "SECOND" BYTES = 6 FORMAT = "F6.3" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAGNETIC_FIELD_X_COMPONENT DATA_TYPE = ASCII_REAL START_BYTE = 21 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "MAGNETIC FIELD DATA (8 SEC) IN A HALLEY CENTERED SOLAR ECLIPTIC COORDINATE SYSTEM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAGNETIC_FIELD_Y_COMPONENT DATA_TYPE = ASCII_REAL START_BYTE = 29 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "MAGNETIC FIELD DATA (8 SEC) IN A HALLEY CENTERED SOLAR ECLIPTIC COORDINATE SYSTEM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAGNETIC_FIELD_Z_COMPONENT DATA_TYPE = ASCII_REAL START_BYTE = 37 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "MAGNETIC FIELD DATA (8 SEC) IN A HALLEY CENTERED SOLAR ECLIPTIC COORDINATE SYSTEM" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAGNETIC_FIELD_MAGNITUDE DATA_TYPE = ASCII_REAL START_BYTE = 45 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "MAGNITUDE OF THE AVERAGED COMPONENTS" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MAGNETIC_FIELD_MEAN DATA_TYPE = ASCII_REAL START_BYTE = 53 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "MEAN OF EACH TRIPLE OF HIGH RESOLUTION MAGNETIC FIELD VECTORS" END_OBJECT = COLUMN OBJECT = COLUMN NAME = AZIMUTH_ANGLE_MAGNETIC_FIELD DATA_TYPE = ASCII_REAL START_BYTE = 61 UNIT = "DEGREE" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "PHI IS COUNTED POSITIVE FROM THE X_AXIS TOWARD THE Y-AXIS" END_OBJECT = COLUMN OBJECT = COLUMN NAME = ELEVATION_ANGLE_MAGNETIC_FIELD DATA_TYPE = ASCII_REAL START_BYTE = 69 UNIT = "DEGREE" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "THETA IS COUNTED POSITIVE FROM THE ECLIPTIC PLANE TOWARD POSITIVE Z" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MEAN_RMS DATA_TYPE = ASCII_REAL START_BYTE = 77 UNIT = "NANOTESLA" BYTES = 6 FORMAT = "F6.1" INVALID_CONSTANT = -999.9 DESCRIPTION = "PYTHAGOREAN MEAN OF THE COMPONENT RMS VALUES" END_OBJECT = COLUMN END_OBJECT = TABLE END