PDS_VERSION_ID = PDS3 /* File Characteristics */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 124 FILE_RECORDS = 1635 /* Data Object Pointers */ ^TABLE = "APD.TAB" /* Identification Keywords */ DATA_SET_ID = "EAR-A-3-RDR-APD-POLARIMETRY-V3.0" PRODUCT_NAME = "Asteroid Polarimetry Database Data Table" PRODUCT_ID = "APD-APD-199904" INSTRUMENT_HOST_NAME = "N/A" INSTRUMENT_NAME = "N/A" TARGET_NAME = ASTEROID START_TIME = 1969 STOP_TIME = 1998 PRODUCT_CREATION_TIME = 1999-04-09 /* Peer Review Date */ /* Data Object Descriptions */ OBJECT = TABLE ROWS = 1635 ROW_BYTES = 124 INTERCHANGE_FORMAT = ASCII COLUMNS = 16 DESCRIPTION = "This file contains the Asteroid Polarimetry Database (APD) compiled by Dmitrij Lupishko of Kharkov University. It contains the majority of asteroid polarimetry published by 1998. This is an update to a previous version, reviewed and archived in 1997. The APD includes data in the form of complete polarization curves (degree of polarization vs. phase angle) as well as the polarization and position angle reduced to the proper coordinate system, where available. The polarimetry data archived in the TRIAD data base (Morrison and Zellner 1979) preserves only the reduced values of minimum polarization, inversion angle, and polarimetric slope, so those data are included in PDS in a separate data set, 'polar.tab'." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "ASTEROID NUMBER" DESCRIPTION = "Catalog number of the asteroid." DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 5 FORMAT = I5 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "ASTEROID NAME" DATA_TYPE = CHARACTER START_BYTE = 7 BYTES = 17 FORMAT = A17 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "OBSERVATION YEAR" DESCRIPTION = "Year of observation." UNIT = YEAR DATA_TYPE = ASCII_INTEGER START_BYTE = 25 BYTES = 4 FORMAT = I4 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "OBSERVATION MONTH" DESCRIPTION = "Month of observation." UNIT = MONTH DATA_TYPE = ASCII_INTEGER START_BYTE = 30 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "OBSERVATION DAY" DESCRIPTION = "Day of the month of the observation." UNIT = DAY DATA_TYPE = ASCII_REAL START_BYTE = 33 BYTES = 5 FORMAT = "F5.2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "FILTER" DESCRIPTION = "The filter used for the observation. The list of filters with their approximate wavelengths in microns are given here: N - 0.333 U - 0.362 B - 0.435 G - 0.518 V - 0.559 O - 0.645 R - 0.685 R1 - 0.685 R2 - 0.883 I - 0.952 " DATA_TYPE = CHARACTER START_BYTE = 40 BYTES = 4 FORMAT = A4 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "PHASE ANGLE" DESCRIPTION = "The phase angle of the asteroid is the angle between the asteroid-sun vector and the asteroid-observer vector." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 45 BYTES = 6 FORMAT = "F6.2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "POLARIZATION" DESCRIPTION = "Degree of polarization in percent." DATA_TYPE = ASCII_REAL START_BYTE = 52 BYTES = 5 FORMAT = "F5.2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "POLARIZATION ERROR" DESCRIPTION = "RMS error in the polarization." DATA_TYPE = ASCII_REAL START_BYTE = 58 BYTES = 4 FORMAT = "F4.2" MISSING_CONSTANT = 9.99 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "POLARIZATION POSITION ANGLE" UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 63 BYTES = 5 FORMAT = "F5.1" MISSING_CONSTANT = 999.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "POLARIZATION POSITION ANGLE ERROR" DESCRIPTION = "RMS error in the polarization position angle." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 69 BYTES = 5 FORMAT = "F5.1" MISSING_CONSTANT = 999.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "PROPER COORDINATE POLARIZATION" DESCRIPTION = "Degree of polarization, in percent, in the proper coordinate system counted off from the perpendicular to the scattering plane: P(r) = P cos 2Q(r), where Q(r) is the position angle in the proper coordinate system, tabulated in the next field." DATA_TYPE = ASCII_REAL START_BYTE = 75 BYTES = 5 FORMAT = "F5.2" MISSING_CONSTANT = 99.99 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "PROPER COORDINATE POSITION ANGLE" DESCRIPTION = "The angle between the measured direction of the strongest electric vector and the normal to the sun-asteroid-earth plane." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 81 BYTES = 6 FORMAT = "F6.1" MISSING_CONSTANT = 9999.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "SCATTERING PLANE POSITION ANGLE" DESCRIPTION = "The position angle of the scattering plane." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 88 BYTES = 5 FORMAT = "F5.1" MISSING_CONSTANT = 999.9 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "OBSERVATORY" DESCRIPTION = "The observatory where the observation was made. The locations of the observatories are given in 'apdobs.doc'. " DATA_TYPE = CHARACTER START_BYTE = 95 BYTES = 12 FORMAT = A12 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "PUBLICATION ID" DESCRIPTION = "Identification of the paper in which the observation was published, consisting of a publication year (followed by a, b, or c in the case of multiple papers published by the same authors in a given year) and the first author of the paper. The complete citations of the papers can be found in the file 'apdref.doc' in this data set. In the case of unpublished observations the value of this field is 'Unpublished'. " DATA_TYPE = CHARACTER START_BYTE = 108 BYTES = 14 FORMAT = A14 END_OBJECT = COLUMN END_OBJECT = TABLE END