CRIRES-Specific Tools and Tips

This page refers to the upgraded CRIRES which is currently installed at UT3. For the original (pre-upgrade, pre-August 2014) CRIRES please use the following link.

Generic Tools and information


High S/N flat fields

On a regular basis, we take high S/N flat fields in all wavelength settings, with a minimum S/N of 500 per pixel per exposure. These flat fields can be searched in the CRIRES specific raw data archive by selecting DPR TYPE = 'FLAT', NDIT '>15' and the desired wavelength setting.


Line lists and FTS scans of gas cells

  • Calibration tables from NIST. This link provides wave numbers for a number of molecules, useful to calibrate CRIRES spectra from atmospheric lines. In wave number, CRIRES spectral range is [1850 - 10520]/cm.
  • FTS scan of Short Gas Cell (SGC) in the H-band (*.gz, 2.5 MB) and K-band (*.gz, 2 MB)
  • FTS scan of N2O Gas Cell in the LM-bands (*.gz, 1 MB)

Data Reduction Pipeline

Upgraded instrument: all information is provided on the cr2res pipeline page. Note that the cr2res pipeline is NOT compatible with data taken with the original instrument (pre-upgrade).


VIPER: RV analysis tool for gas-cell data

A prototype of VIPER is available for K-band data. This tool is currently under development, thus no support is provided by ESO.


Molecfit: correction of telluric lines

A prototype Molecfit workflow for CRIRES has been released.


Catalogues of telluric standard stars:

Catalogues of spectro-photometric standard stars:

Optical Spectrophotometric Standards of SpT B4-A9. Models for these stars in the range 950 to 5300 nm are collected in this gzipped FITS binary file, part of the static calibration frames (19.3 MB).