CRIRES:
Reference frames

CRIRES reference frames

The CRIRES reference frames pages offer:

• example frames for the daily health check settings (plus selected additional settings)
• an atlas of ThAr and N2O wavelength calibration exposures
• S/N in flat fields.

Daily Health Check settings

The following CRIRES calibrations are measured daily independent from the settings used during the night:

• DARKs: a set of 3 darks for DIT = 1 and DIT = 300 sec
• FLATs: one flat-field for each for the reference wavelengths 1090.4, 3218.6, and 4092.9 nm;
  two flats with 2199.1 nm, one with the halogen lamp and one with the IR emitter
• WAVEs: a ThAr exposure for 1090.4 nm and a N2O exposure at 4092.9 nm.

DARK reference frames

DIT		1 sec	300 sec
Dark
raw frames		raw	raw
headers		hdr	hdr
masters
master files		master	master

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FLAT reference frames

WLEN_REF		1090.4 nm	3218.6 nm	4092.9 nm		2199.1 nm	4279.6 nm
Flat
raw frames		raw	raw	raw		raw	raw
headers		hdr	hdr	hdr		hdr	hdr
masters
bad pixel map
master files		master	master	master
BPM files			bpm

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WAVE reference frames

WLEN_REF		1090.4 nm	4092.9 nm
Opt Elem		ThAr arc lamp	N2O gas cell
Wave
raw frames		raw	raw
headers		hdr	hdr