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: http://www.stsci.edu/hst/observatory/crds/component_throughput.html
Дата изменения: Unknown Дата индексирования: Mon Apr 11 05:04:42 2016 Кодировка: |
HST Throughput Tables are also kept in CDBS. These tables give coefficients of transmission as a function of wavelength and including an associated error value. The individual tables for each instrument are accessed through a system using a master component table and a master graph table. This data is used in conjunction with the STSDAS software package Synphot for off-line calibration as well as being used in Opus for standard pipeline calibrations.
For history tracking reasons, we rename all of the master component and graph tables and keep them in a separate directory called MTAB. The MTAB directory contains HST master component and graph tables which have been delivered to OPUS, renamed using the uniqname schema.
The extensions denote the type of file each represents: