HST archive news: on the fly recalibration (OTF) of NICMOS and STIS data.

Details HST archive news: on the fly recalibration (OTF) of NICMOS and STIS data. HST archive news: on the fly recalibration (OTF) of NICMOS and STIS data.

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998msngr..93...27m&link_type=abstract

The Messenger, vol. 93, p. 27-28

Other

Data Archives: Data Processing, Data Archives: Hubble Space Telescope

Scientific paper

HST science data are automatically calibrated when they are received at STScI (Space Telescope Science Institute) and these calibrated data are included in Baltimore's archive. The calibration software, which is contained in the IRAF/ STSDAS hst_calib package, takes as input the raw data and any necessary calibration reference images or tables if they are already available [2]. The software determines which calibration steps to perform by checking the values of the calibration switches in the header. It selects which reference files to use in the calibration by examining the reference file keywords. The values of these switches and keywords depend upon the exact configuration of the instrument, the date of the observation and any other constraints. The values are set in the headers of the raw data in OPUS (OSSPODPS Unify System).

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