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Gemini Images Comet Hours Before Probe’s Landing

First Surface Observations of Oort Cloud Objects

Quenching Star Formation in Cluster Galaxies

Gemini Data Processing Software


Official Data Processing Software

The data reduction software approved for scientific purposes is the Gemini IRAF package.

GIFS Bidders Conference Information

On the 31st October Gemini Observatory will host an interactive remote Bidders Conference for participates to learn more about the GIFS RfP.

Participants can attend by phone or by polycom. Gemini will host two equivalent sessions to allow for participation across many different time zones.

Session 1: 11:00 – 13:30 CLST
Session 2: 19:00 – 21:30 CLST

If you plan on attending one of the sessions, please email and inform us which session you plan on attending and how. (i.e. my phone or polycom)

Mask-making Software

GMMPS v1.0.4 released

This version supports all GMOS-N and GMOS-S detector configurations (and also Flamingos-2 once its MOS mode is commissioned).

We highly recommend to update to this latest version.
This will bring you more efficient and fully compatible mask design.
Gemini may reject masks designed with older versions of GMMPS.

Observing Strategies



The gaps between the three detectors in GMOS cause gaps in the spectral coverage, see the example. The size of the gaps in wavelength space depends on the grating used, but is typically a few nanometers. If continuous spectral coverage is essential for your program, consider using two configurations of the grating with central wavelengths 3-5 nm different.

A Pair of Stellar Corpses Surrenders Secrets