Overview: On The Fly Recalibration ST-ECF Archive

On The Fly Recalibration of HST Data

Until now, when users requested calibrated data from the HST archive, they received the data produced by the RSDP (Routing Science Data Processing) pipeline at the Space Telescope Science Institute.

However, with instrumental properties changing with time, better approaches for calibration of some instruments have been introduced and there have been other general improvements to the calibration of HST data.

For this reason the CADC and the ST-ECF have introduced an option in the process of retrieving data from the HST archive, allowing the On The Fly Recalibration.

Our automatic process:

  1. retrieves the raw data,
  2. updates the header in order to reflect the current information on which
  3. runs the standard calibration pipeline.

Depending on your request options, datasets recalibrated by the ST-ECF will contain:

rootname.xxx.fits Raw and Auxiliary Files
rootname.c[0-9].fits data re-calibrated on the fly
rootname.ecf.log CALxxx log file
rootname.log iraf overall processing log

References:

Try it out, using one of the HST Archive Browsers.
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Last update: Jul 31, 1996