Instrument modes
This page lists the instrument modes relevant for providing the DFO statistics.

The statistics tables should split by the entries under 'MODE'. These are 'logical' modes. There is no general strict rule which FITS keywords to read for defining the logical modes. The purpose of this table is to list the criteria for each instrument.

General notes:

  • we don't count technical frames, TEST frames.
  • we do count ACQUISITION frames.
  • we count VM CALIB frames only if they have been processed.
  • we count SCIENCE frames only if taken in SM.
  • the DET mode counts BIAS, DARK and PARASITIC frames.
  • logical modes usually split further by e.g. filters, read modes etc. These are considered 'flavours' or attributes and need not be counted separately.
  • we count frames on the basis of their FITS header keywords or database entries. If they have wrong entries, we don't try to correct the statistics for that.

INSTRUMENT MODE DEFINITION    
    DPR_CATG DPR_TYPE DPR_TECH INS_MODE Comments
FORS1  
  IMG ACQUISITION SKY IMAGE IMG  
  IPOL ACQUISITION SKY IMAGE IPOL  
  LSS ACQUISITION SKY; SLIT IMAGE LSS  
  MOS ACQUISITION SKY; SLIT IMAGE MOS  
  PMOS ACQUISITION SKY; SLIT IMAGE PMOS  
  DET CALIB BIAS; DARK IMAGE IMG  
  IMG CALIB FLAT,LAMP etc. IMAGE IMG  
  IPOL CALIB STD POLARIMETRY IPOL polarimetry IMG
  LSS CALIB FLAT,LAMP etc. SPECTRUM LSS long slit spectroscopy
  MOS CALIB FLAT,LAMP etc. MOS MOS MOS
  PMOS CALIB FLAT,LAMP etc. POLARIMETRY PMOS polarimetry MOS
  IMG SCIENCE OBJECT IMAGE IMG  
  IPOL SCIENCE OBJECT POLARIMETRY IPOL polarimetry IMG
  LSS SCIENCE SKY SPECTRUM LSS long slit spectroscopy
  MOS SCIENCE SKY MOS MOS MOS
  PMOS SCIENCE SKY POLARIMETRY PMOS polarimetry MOS
FORS2 Preimaging SCIENCE data are counted separately.
  IMG ACQUISITION SKY IMAGE IMG  
  LSS ACQUISITION SKY; SLIT IMAGE MOS  
  MOS ACQUISITION SKY; SLIT IMAGE MOS  
  MXU ACQUISITION SKY; SLIT IMAGE MXU  
  DET CALIB BIAS; DARK IMAGE IMG  
  IMG CALIB FLAT,LAMP etc. IMAGE IMG  
  LSS CALIB FLAT,LAMP etc. SPECTRUM LSS long slit spectroscopy
  MOS CALIB FLAT,LAMP etc. MOS MOS MOS
  MXU CALIB FLAT,LAMP etc. MXU MXU MXU
  IMG SCIENCE OBJECT IMAGE IMG  
  LSS SCIENCE SKY SPECTRUM LSS long slit spectroscopy
  MOS SCIENCE SKY MOS MOS MOS
  MXU SCIENCE SKY MXU MXU MXU
  PRE_IMG SCIENCE OBJECT IMAGE,PRE IMG pre-imaging
GIRAFFE/FLAMES GIRAFFE has three modes with separate data streams: Medusa = MOS, IFU, ARGUS. There is also the DET mode for BIAS and DARK frames. There are also technical calibrations with lamps in IMAGE mode which are not counted here.
files DET CALIB BIAS, DARK IMAGE ***none***  
high MOS CALIB LAMP,FLAT etc. MOS MED 2 Medusa slits
  IFU CALIB LAMP,FLAT etc. MOS IFU 2 IFU slits
  ARGUS CALIB LAMP,FLAT etc. MOS ARG 1 Argus slit
  MOS SCIENCE OBJECT,OzPoz etc. MOS MED 2 Medusa slits
  IFU SCIENCE OBJECT,OzPoz etc. IFU IFU 2 IFU slits
  ARGUS SCIENCE OBJECT,OzPoz etc. IFU ARG 1 Argus slit
ISAAC The spectroscopic mode is called LSS here in analogy to the FORSes.
  LSS ACQUISITION SKY IMAGE SWI1, LWI4 SW arm, LW arm
  DET CALIB DARK IMAGE SW-DARK, LW-DARK SW, LW
  IMG CALIB STD etc. IMAGE; IMAGE,CHOPPING SWI1, LWI4 SW, LW
  LSS CALIB WAVE; FLAT SPECTRUM,NODDING SWS1-MR, SWS1-LR; LWS3-LR, LWS3-MR SW, LW
  IPOL CALIB STD etc. POLARIMETRY SWP1 SW arm only
  IMG SCIENCE OBJECT,SKY IMAGE,JITTER; IMAGE,JITTER,CHOPPING SWI1, LWI4 SW, LW
  LSS SCIENCE OBJECT SPECTRUM, NODDING SWS1-MR, SWS1-LR; LWS3-LR, LWS3-MR SW, LW
  IPOL SCIENCE OBJECT POLARIMETRY,JITTER SWP1 SW only
NACO NACO has just one dfo-supported mode, IMG. There are also SPECTRUM, CORONOGRAPHY and POLARIMETRY data taken in VM.
  IMG ACQUISITION SKY IMAGE IMAGING  
  DET CALIB DARK IMAGE DARK  
  IMG CALIB FLAT,LAMP; STD etc. IMAGE; IMAGE,JITTER IMAGING  
  IMG SCIENCE OBJECT; SKY IMAGE IMAGING  
UVES (solo)

UVES (solo, in contrast to UVES/FLAMES which has additional components) has the ECH mode for CALIB data. SCIENCE data come in ECH and in SLIC mode but share the same set of ECH calibration data.

All UVES data use the same set of DET (BIAS, DARK) files.

files (incl. FIB mode) ECH ACQUISITION SLIT IMAGE BLUE,RED,DI1,DI2  
high (incl. FIB mode) SLIC ACQUISITION SLIT IMAGE BLUE,RED,DI1,DI2 SLIT1.NAME=SLIC#1 etc.
  DET CALIB BIAS;DARK;PARASITIC IMAGE ***none***  
  ECH CALIB LAMP,FMTCHK etc. ECHELLE;
ECHELLE,ABSORPTION-CELL		 BLUE,RED,DI1,DI2 iodine cell flats are processed as
normal flats
  ECH SCIENCE OBJECT,POINT; OBJECT,EXTENDED

ECHELLE;
ECHELLE,ABSORPTION-CELL

 BLUE,RED,DI1,DI2 POINT and EXTENDED have different reduction strategies
but are otherwise the same.
  SLIC SCIENCE OBJECT,POINT ECHELLE,SLIC#1 etc. ;
ECHELLE,ABSORPTION-CELL,SLIC#1 etc.		 BLUE,RED,DI1,DI2 image slicer
UVES/FLAMES Also called UVES-FIBRE. This is a combination of UVES and the FLAMES fibre facility. UVES-FIBRE uses the DET calibrations from UVES.
  FIB CALIB

LAMP,FLAT,EVEN,OzPoz etc.

MOS FIB SLIT3.MODE=6FIB or 8FIB for OzPoz,
SLIT3.MODE=7+1FIB for SimCal.
SFLATs, FMTCHK and ORDERDEF are also counted here.
  FIB SCIENCE OBJECT,OzPoz; OBJECT,SimCal MOS FIB SLIT3.MODE=6FIB or 8FIB for OzPoz,
SLIT3.MODE=7+1FIB for SimCal.
VIMOS VIMOS has three modes with separate data streams: MOS, IFU and IMG. Preimaging SCIENCE data are counted separately since DFO treatment is very different.
  MOS ACQUISITION SLIT,OBJECT IMAGE MOS  
  DET CALIB BIAS;DARK IMAGE IMG; MOS  
  MOS CALIB LAMP,FLAT etc. MOS MOS  
  IFU CALIB LAMP,FLAT etc. IFU IFU  
  IMG CALIB LAMP,FLAT etc. IMAGE IMG  
  MOS SCIENCE OBJECT MOS MOS  
  IFU SCIENCE OBJECT IFU IFU  
  IMG SCIENCE OBJECT IMAGE IMG  
  PRE_IMG SCIENCE OBJECT IMAGE,PRE IMG counted extra