Find here detailed information about the FORS1 trending plots and select plots and data for download.
 

Some FORS1 calibration data are presently monitored to extract information about their quality and the instrument performance. The quality information is extracted into so-called QC parameters.

FORS1 calibration data are pipeline-processed to create calibration products. The quality of the products is measured by QC1 parameters. Most QC1 parameters are obtained by pipeline procedures; some are measured by post-pipeline recipes.

All measured QC1 parameters are stored in a database. Their evolution with time is evaluated by the trending process.

The following properties of FORS1 detector and instrument components are trended:

• bias level and read noise
• detector parameters
• dark current

zeropoints and image quality

• zeropoints per frame and per night
• image quality
• extinction coefficients and colour terms

wavelength calibrations

• LSS
  
• MOS