PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 78 FILE_RECORDS = 127 ^TABLE = "apdcurv.tab" DATA_SET_ID = "EAR-A-3-RDR-APD-POLARIMETRY-V7.0" PRODUCT_NAME = "APD POLARIZATION CURVE PARAMETERS" PRODUCT_ID = "APDCURV_TAB" INSTRUMENT_HOST_ID = "PUBLIT" INSTRUMENT_HOST_NAME = "PUBLISHED LITERATURE" INSTRUMENT_ID = "COMPIL" INSTRUMENT_NAME = "COMPILATION" TARGET_NAME = "ASTEROID" TARGET_TYPE = "ASTEROID" START_TIME = 1958-10-22 STOP_TIME = 1995-05-05 PRODUCT_CREATION_TIME = 2006-07-21 /* File uploaded to OLAF */ REFERENCE_KEY_ID = "LUPISHKO&MOHAMED1996" OBJECT = TABLE ROWS = 127 ROW_BYTES = 78 INTERCHANGE_FORMAT = "ASCII" COLUMNS = 14 DESCRIPTION = "This is a tabulation of polarimetry curve parameters and polarimetric albedos for selected asteroids. This information appeared originally as Table II of Lupishko and Mohamed (1996) [LUPISHKO&MOHAMED1996]. In the 1999 version (V3.0) and later, the albedos of four asteroids were refined slightly by the authors of the original paper. These asteroids are numbers 55, 147, 201, and 325. Lupishko, D.F. and R.A. Mohamed 1996. A new calibration of the polarimetric albedo scale of asteroids. Icarus 119, 209-213." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "AST_NUMBER" DESCRIPTION = "Asteroid catalog number" DATA_TYPE = "ASCII_INTEGER" START_BYTE = 1 BYTES = 6 FORMAT = "I6" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "AST_NAME" DESCRIPTION = "Asteroid name" DATA_TYPE = "CHARACTER" START_BYTE = 8 BYTES = 18 FORMAT = "A18" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "MIN_POLARIZATION" DESCRIPTION = "Minimum value of polarization curve, referred to below as Pmin" UNIT = "PERCENT" DATA_TYPE = "ASCII_REAL" START_BYTE = 27 BYTES = 4 FORMAT = "F4.2" MISSING_CONSTANT = 9.99 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "SLOPE" DESCRIPTION = "Slope of the ascending branch of the polarization curve measured at the inversion angle, referred to below as 'h'" DATA_TYPE = "ASCII_REAL" START_BYTE = 32 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 9.999 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "PMIN_ALBEDO" DESCRIPTION = "Albedo as determined from the empirical formula log pv(Pmin) = -1.22 log Pmin - 0.92, where Pmin is the minimum value of the polarization (tabulated in this table)" DATA_TYPE = "ASCII_REAL" START_BYTE = 38 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 9.999 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "H_ALBEDO" DESCRIPTION = "Albedo as determined from the empirical formula log pv(h) = -0.98 log h - 1.73, where h is the slope of the ascending branch of the polarization curve measured at the inversion angle (tabulated in this table)" DATA_TYPE = "ASCII_REAL" START_BYTE = 44 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 9.999 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "POL_ALBEDO" DESCRIPTION = "Polarization Albedo - Albedo as determined by a weighted average of pv(Pmin) and pv(h) (tabulated in the previous two columns). The albedos determined from Pmin and h were given weights of 1 and 2 respectively in determining this value." DATA_TYPE = "ASCII_REAL" START_BYTE = 50 BYTES = 5 FORMAT = "F5.3" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "ALBEDO_QUALITY" DESCRIPTION = "A single-digit albedo quality code. The quality code was described in Lupishko and Mohamed (1996) as follows: 'Quality code 1 means fragmentary data, 2 applies to reliable, confirmed observations, and 3 is used for results that could hardly be improved.'" DATA_TYPE = "ASCII_INTEGER" START_BYTE = 56 BYTES = 1 FORMAT = "I1" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "FILTER1" DESCRIPTION = "The filter through which INV_ANGLE1 was measured. The filter codes with their approximate effective wavelegths in microns are given here: B = BLUE, 0.435. G = GREEN, 0.518. V = VISUAL, 0.559. X indicates no filter was used. N indicates no measurement made (null value)." DATA_TYPE = "CHARACTER" START_BYTE = 59 BYTES = 1 FORMAT = "A1" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "INV_ANGLE1" DESCRIPTION = "The angle at which the polarization changes sign, in degrees, for filter 1." UNIT = "DEGREE" DATA_TYPE = "ASCII_REAL" START_BYTE = 61 BYTES = 4 FORMAT = "F4.1" MISSING_CONSTANT = 99.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "INV_ANGLE1_QUALITY" DESCRIPTION = "A single-digit quality code referring to the INV_ANGLE1. The quality code was described in Lupishko and Mohamed (1996) as follows: 'Quality code 1 means fragmentary data, 2 applies to reliable, confirmed observations, and 3 is used for results that could hardly be improved.'" DATA_TYPE = "ASCII_INTEGER" START_BYTE = 66 BYTES = 1 FORMAT = "I1" MISSING_CONSTANT = 0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "FILTER2" DESCRIPTION = "The filter through which INV_ANGLE2 was measured. The filter codes with their approximate effective wavelengths in microns are given here: B = BLUE, 0.435. G = GREEN, 0.518. V = VISUAL, 0.559. X indicates no filter was used. N indicates no measurement made (null value)." DATA_TYPE = "CHARACTER" START_BYTE = 69 BYTES = 1 FORMAT = "A1" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "INV_ANGLE2" DESCRIPTION = "The angle at which the polarization changes sign, in degrees, for filter 2." UNIT = "DEGREE" DATA_TYPE = "ASCII_REAL" START_BYTE = 71 BYTES = 4 FORMAT = "F4.1" MISSING_CONSTANT = 99.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "INV_ANGLE2_QUALITY" DESCRIPTION = "A single-digit quality code referring to the INV_ANGLE2. The quality code was described in Lupishko and Mohamed (1996) as follows: 'Quality code 1 means fragmentary data, 2 applies to reliable, confirmed observations, and 3 is used for results that could hardly be improved.'" DATA_TYPE = "ASCII_INTEGER" START_BYTE = 76 BYTES = 1 FORMAT = "I1" MISSING_CONSTANT = 0 END_OBJECT = COLUMN END_OBJECT = TABLE END