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Reducing the Data

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Gemini Data Reduction Software

Gemini offers data reduction software for its facility instruments. The Gemini IRAF package and the DRAGONS platform are the official data reduction software supported by Gemini.

For the next several years we will be transitioning from the IRAF platform to our new Python-based DRAGONS platform. As time goes by, more and more instruments and modes will be supported by DRAGONS. During this transition, it is possible that users will require both platforms depending on the data they have obtained.

  • Latest version of Gemini IRAF:  v1.16.1  (August 2024)
  • Latest version of DRAGONS:  v3.2.2  (October 2024)

Which platform should I use?

Gemini IRAF currently still support all the instruments and modes. However for any imaging data from current instruments,  DRAGONS should be used. DRAGONS currently support imaging data reduction, GMOS longslit spectroscopy (including nod&shuffle mode) and GHOST data reduction.

GMOS Imaging DRAGONS 
NIRI Imaging DRAGONS 
GNIRS Keyhole Imaging DRAGONS
Flamingos-2 Imaging DRAGONS 
GSAOI Imaging DRAGONS

GMOS longslit spectroscopy
(including nod-and-shuffle)

DRAGONS

GHOST spectroscopy

DRAGONS
Any other spectroscopy

[GMOS MOS, GMOS IFU,
F2 longslit, F2 MOS
GNIRS longslit, GNIRS XD, GNIRS IFU]
Gemini IRAF
Decommisioned Instruments Gemini IRAF

Getting the Software

  1. DRAGONS installation instructions
  2. DRAGONS documentation
  3. Gemini IRAF installation instructions and documentation

Data Reduction Help

To get help with Gemini IRAF or DRAGONS, please use the Gemini Helpdesk system. Use the Gemini IRAF category even for DRAGONS questions.

     Submit Helpdesk Ticket

If you find a bug with DRAGONS, please consider reporting on the DRAGONS Github issues portal. You will need a Github account.

     DRAGONS Code Issues