PDS_VERSION_ID = PDS3 /* File Characteristics */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 120 FILE_RECORDS = 1303 /* Data Object Pointers */ ^TABLE = "APD.TAB" /* Identification Keywords */ DATA_SET_ID = "EAR-A-3-RDR-APD-POLARIMETRY-V1.0" PRODUCT_NAME = "Asteroid Polarimetry Database Data Table" PRODUCT_ID = "APD-APD-199604" INSTRUMENT_HOST_NAME = "N/A" INSTRUMENT_NAME = "N/A" TARGET_NAME = ASTEROID START_TIME = 1969 STOP_TIME = 1994 PRODUCT_CREATION_TIME = 1996-03-29 /* Peer Review Date */ RECORD_FORMAT = "(i5,1x,a17,1x,i4,1x,i2,1x,f5.2,1x,a2,1x,f6.2, 1x,f5.2,1x,f4.2,1x,f5.1,1x,f4.1,1x,f5.2,1x,f6.1,1x,f5.1,2x,a12,1x,a14)" /* Data Object Descriptions */ OBJECT = TABLE ROWS = 1303 ROW_BYTES = 120 INTERCHANGE_FORMAT = ASCII COLUMNS = 16 DESCRIPTION = "This file contains the Asteroid Polarimetry Database (APD) compiled by Dr. Dmitrij Lupishko of Kharkov University. It contains the majority of asteroid polarimetry published by 1995. 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 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 NAME = "ASTEROID NAME" DATA_TYPE = CHARACTER START_BYTE = 7 BYTES = 17 FORMAT = A17 END_OBJECT = COLUMN OBJECT = COLUMN 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 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 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 NAME = "FILTER" DESCRIPTION = "The filter used for the observation. The list of filters with their approximate wavenumbers (in micron^-1) are given here: N - 3.00 U - 2.76 B - 2.30 G - 1.93 V - 1.79 O - 1.55 R - 1.46 I - 1.05." DATA_TYPE = CHARACTER START_BYTE = 40 BYTES = 2 FORMAT = A2 END_OBJECT = COLUMN OBJECT = COLUMN 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 = 43 BYTES = 6 FORMAT = "F6.2" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "POLARIZATION" DESCRIPTION = "Degree of polarization in percent." DATA_TYPE = ASCII_REAL START_BYTE = 50 BYTES = 5 FORMAT = "F5.2" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "POLARIZATION ERROR" DESCRIPTION = "RMS error in the polarization." DATA_TYPE = ASCII_REAL START_BYTE = 56 BYTES = 4 FORMAT = "F4.2" END_OBJECT = COLUMN OBJECT = COLUMN NAME = "POLARIZATION POSITION ANGLE" UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 61 BYTES = 5 FORMAT = "F5.1" MISSING_CONSTANT = 999.9 END_OBJECT = COLUMN OBJECT = COLUMN NAME = "POLARIZATION POSITION ANGLE ERROR" DESCRIPTION = "RMS error in the polarization position angle." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 67 BYTES = 4 FORMAT = "F4.1" MISSING_CONSTANT = 99.9 END_OBJECT = COLUMN OBJECT = COLUMN 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 = 72 BYTES = 5 FORMAT = "F5.2" MISSING_CONSTANT = 99.99 END_OBJECT = COLUMN OBJECT = COLUMN 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 = 78 BYTES = 6 FORMAT = "F6.1" MISSING_CONSTANT = 9999.9 END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SCATTERING PLANE POSITION ANGLE" DESCRIPTION = "The position angle of the scattering plane." UNIT = DEGREE DATA_TYPE = ASCII_REAL START_BYTE = 85 BYTES = 5 FORMAT = "F5.1" MISSING_CONSTANT = 999.9 END_OBJECT = COLUMN OBJECT = COLUMN NAME = "OBSERVATORY" DESCRIPTION = "The observatory where the observation was made. Values include the following: Abastumani - Abastumani Astrophysical Observatory, Georgia. Crimea - Crimean Astrophysical Observatory, Ukraine. di Brera - Osservatorio Astronomico di Brera-Merate, Italy. Kharkov - Astronomical Observatory of Kharkov University, Kharkov, Ukraine. Sanglok - Sanglok Observatory of the Institute of Astrophysics, Dushanbe, Tajikistan. Tarija - Soviet-Bolivian Astronomical Observatory, Tarijia, Bolivia. " DATA_TYPE = CHARACTER START_BYTE = 92 BYTES = 12 FORMAT = A12 END_OBJECT = COLUMN OBJECT = COLUMN 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.tab' in this dataset. In the case of unpublished observations the value of this field is 'Unpublished'. " DATA_TYPE = CHARACTER START_BYTE = 105 BYTES = 14 FORMAT = A14 END_OBJECT = COLUMN END_OBJECT = TABLE END