The FORS 5.5.6 pipeline

These pages describe the python interface for the FORS pipeline recipes.

Standard recipes

fors_bias

Compute the master bias frame

fors_calib

Determination of the extraction mask

fors_dark

Compute master dark frame

fors_extract

Extraction of scientific spectra

fors_img_science

Reduce imaging scientific exposure

fors_img_screen_flat

Compute master screen flat frame

fors_img_sky_flat

Compute master img_sky_flat frame

fors_pmos_calib

Determination of the extraction mask

fors_pmos_extract

Extraction of scientific spectra

fors_science

Extraction of scientific spectra

fors_sumflux

Integrate flux from all or part of the input frame

fors_zeropoint

Compute zeropoint

Additional recipes

fors_align_sky

Upgrade wavelength solution using sky lines

fors_align_sky_lss

Upgrade wavelength solution using sky lines

fors_config

Creation of FORS recipes configuration tables

fors_detect_objects

Detect objects in slit spectra

fors_detect_spectra

Detect MOS/MXU spectra on CCD

fors_extract_objects

Extract objects in slit spectra

fors_extract_slits

Spatial rectification of spectral image

fors_flatfield

Flat field correction of input frame

fors_normalise_flat

Normalise master flat spectrum

fors_photometry

Compute corrected flatfield

fors_pmos_science

Extraction of scientific spectra

fors_remove_bias

Subtract bias from input frame

fors_resample

Resample input spectra at constant wavelength step

fors_spec_mflat

Computes master spectroscopic flat, removing bias first

fors_subtract_sky

Subtract sky from scientific spectra

fors_subtract_sky_lss

Subtract sky from calibrated long slit exposure

fors_trace_flat

Determine spectral curvature model

fors_wave_calib

Derive dispersion relation from rectified arc lamp frame

fors_wave_calib_lss

Derive dispersion relation from long-slit arc lamp frame

See also

• The FORS Pipeline User Manual in PDF format,

• an overview over the existing ESO pipelines,

• the python-cpl package.

Bug reports

If you experience an unexpected behavior of any component of the FORS pipeline recipes package, please, first refer to the list of known problems and limitations in the pipeline manual of the current FORS pipeline release.

For any other issues or requests, please, send a report to the ESO User Support Department, describing:

• the FORS pipeline version,

• the version of your OS and C compiler,

• the exact sequence of actions that were performed before the problem occurred,

• what were precisely the symptoms and the possible error message(s),

• whether the problem is repeatable.