PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT NOTE = "A description of the contents the CALIB directory." PUBLICATION_DATE = 2016-180 END_OBJECT = TEXT END This directory contains a set of subdirectories. Each subdirectory has a name of the form VERSION_ and corresponds to a version of the FUV and EUV calibration. Each of these version directories contains a set of subdirectories. Each subdirectory has a name of the form D where yyyy is a year and ddd is a day of year. Each of these subdirectories correspond to one of the subdirectories of the DATA directory. For example, CALIB | --------------------------------------------------- | | VERSION_1 VERSION_N | -------------------... | | D2000_278 D2000_279... The contents of these D_ directories are pairs of PDS data and label files. Each pair corresponds to a pair of files in the corresponding data directory. Each pair contains the label and data components of a PDS Qube object. This Qube object corresponds to a two dimensional matrix whose dimensions are the same as each sample of the corresponding data object. In order to calibrate a data object contained in the data directory, multiply each sample of the data Qube by the matrix contained in the calibration Qube, then multiply each element of the resulting Qube by the CORE_MULTIPLIER value contained in the label file for the calibration Qube object. The name of a calibration data file contains the name of the data file containing the raw data followed by CAL_ where n is a version number. For example, FUV2000_278_17_10.DAT is a data file and FUV2000_278_17_10_CAL_1.DAT is the corresponding calibration data file. The calibration file with the highest version number is the nominal calibration. The software and data used to generate these calibration objects is located in the SOFTWARE/CALIB/ directory.