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Gemini Data Processing Software

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Gemini is developing data reduction software for use with observational data obtained with the Gemini telescopes. The released version of the software is available to users and other interested parties as the Gemini IRAF package, an external package layered upon IRAF. The Gemini IRAF package currently supports data from the following instruments: GMOS-N, GMOS-S, NIFS, NIRI, GNIRS, Michelle, TReCS, OSCIR, Hokupa'a+QUIRC and Flamingos-I. Support for other facility instruments will be added as these instruments become available. The package is organized in a number of sub-packages. It contains a generic tools package, "gemtools", and instrument-specific packages, as well as more generic packages for different types of data. The raw data from the Gemini facility instruments are stored as multi-extension FITS (MEF) files. Therefore all the tasks in "gemtools" and all packages intended for processing of data from the facility instruments are capable of handling MEF files. Gemini provides only limited reduction software for visitor instruments.


ANNOUNCEMENT - GEMINI IRAF v1.10 Released
July 28, 2009

A new version of the GEMINI IRAF package is now available.  This version, v1.10, requires at minimum IRAF 2.12.2a, but IRAF 2.14 is recommended.   The package is now compatible with PyRAF as well as the CL environment.  At this time, PyRAF is not required.   For those who wish to use PyRAF, the mininum requirement is PyRAF v1.5 and stsci_python v2.6.

The highlights are as follow:

1) PyRAF compatibility

2) Near-IR and mid-IR: nstransform split into nsfitcoords and nstransform

3) MIDIR: a) New tasks: msslice, miclean, mipql, mistdflux
b) Improved msreduce wavelength calibration

4) GMOS: a) Improved support for GMOS nod-and-shuffle modes
b) Improved GMOS variance and data quality calculations
c) Added GFEXTRACT IFU single slit extraction feature
d) Update overscan subtraction
e) No-pre-imaging GMOS MOS mask design software now fully integrated
f) Add B600 grating and OIII, He, Ha filters to gmos$data/ files
g) Other GMOS improvements - GIFLAT, GSTRANSFORM, GIFRINGE, GFCUBE

5) NIFS: a) Moved tasks NFCKCAL and NFCHECK to GEMTOOLS and renamed CKCAL and CKINPUT respectively.
b) Critical update to NFPAD to compensate for recent H-band grating shift.
c) Critical bug fix for GEMTOOLS.GEMCUBE (only used in the NIFS package as of this release)

More details are contained in the release note.