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Calibration Database System
Throughput Tables

(The Exposure Time Calculators use a dedicated installation of these files, which is updated on the ETC release schedule and may not be the same as the files listed here.)

There are five basic types of files (FITS tables) we use with the STSDAS software package Synphot and its successor (currently in development),pysynphot.

These five types of synphot tables are used by the software to estimate the total throughput of any given observing mode or configuration. New synphot files or updates are also delivered to OPUS via the same basic CDBS reference file delivery process with some specific changes that are described in the TIR.

The tmc, tmg, and tmt tables are also kept in their own directory, called "mtab". They are uniquely named using the uniqname schema, with rootnames endings as described above.

Access the mtab FTP directory containing the synphot master tables (tmc, tmg, & tmt).

NOTE: There is a known bug with trying to access the files via ftp server with the Safari browser. The recommended browser for retrieving the files is Firefox.

If you are using Synphot or Pysynphot you might want to download the latest version of the data it uses in its calcualtions. Since the set of Synphot data files is rather large, they are distributed in separate tar files.

Access FTP directories of the individual component throughput tables (current SIs):

Access the FTP directories of the individual component throughput tables for the previous generation SIs:

Access the FTP directories of the OTA-related throughput tables and the Non-HST tables.