- O/IR System
Information about how to handle your Gemini data can be found at Gemini Phase III website. This page includes Gemini web page links that discuss all the data processing steps from quallity assessment through publication and observer feedback. Some of the most useful links are:
Data from Gemini facility instruments is in Multi-Extension FITS (MEF) format. MEF files consist of a Primary Header Unit (PHU) and one or more extensions that contain pixel data. The PHU is indexed 0, the first extension is indexed 1, etc. Standard IRAF is designed to work with FITS files that contain header and pixel data in a single file. Gemini IRAF/Pyraf and DRAGONS routines were written to work with MEF files. Additional details can be found on the Gemini website under data-formats.
Gemini's new Python-based data reduction platform, DRAGONS (Data Reduction for Astronomy from Gemini Observatory North and South) is currently capable of reducing any imaging data from current instruments. Its use is recommended whenever possible, and new modes and instruments are being added. More information can be found at the Gemini Data Reduction Software webpage.
The Gemini website provides links on data reduction for each instrument. Also, the General information on near-IR observations page includes wavelength calibration information, line lists, photometric, spectroscopic, telluric standard lists, spectral templates, etc. There is additional data reduction information for each Gemini instrument on the instrument's web page under the topic “data format and reduction”.
You can access the Gemini Helpdesk for all types of help, and also reach out to the US NGO members.
Last updated or reviewed November 3, 2020.