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Announcement of Ureka v1.0beta5

STScI and Gemini are announcing the first public beta release of the Ureka binary packaging installer for common astronomical software (primarily for the UV/Optical/IR community). The goals of the Ureka installer are to:

New MOS mask design software released

A new version of the Gemini MOS Mask Preparation Software (GMMPS) is now available. This version contains significiant changes designed to improve usability and to reduce the time needed to iterate on mask designs.  The slit placement algorithm has also been improved. All users of GMMPS are encouraged to update.

Designing Nod and Shuffle Masks

Selecting or Creating a Band Definition File

The Nod & Shuffle mode and the definition of micro-shuffling and band-shuffling are described on the Nod & Shuffle pages. The terms from those pages will be used in the description below. Also note that Nod and Shuffle masks can only be created for GMOS mask files --- Flamingos-2 does not support N&S masks.

Creating Object Definition Files (ODFs)

Creating Object Definition Files (ODFs)

Once all object priorities and slit angles have been set, you are ready to create mask file(s). This step will allow you to create a minimal ODF for each mask required for the current FITS image. The software has the ability to select objects based on their priority to optimally place the slits in the mask. The following steps outline how to create the mask: 

Editing and Prioritizing

This page contains instructions on editing slit and object properties and assigning priorities to objects. Go directly to:



Loading an Object Table

To load the Object Table, proceed as follows: 

Loading Images into GMMPS

The image of the field should be a reduced (co-added) GMOS image supplied by Gemini, or a similarly reduced image. The image should be a MEF file. More information about MEF files can be found on the data formats page.

Tips, Bugs and Troubleshooting

Some hints for successful use of GMMPS. Go directly to:


Running GMMPS 

Loading ODF and Plotting the Slits

You can only plot the slits and spectra for a single mask at a time. If the ODF catalog has changed on the disk you may bring your ODF window up to date by pressing the “Reload Catalog” button. To load and plot the slits for a particular mask:

2013B Classical Schedule

Semester 2013B

The table below summarises the classically-scheduled programs that have been awarded time on Gemini North and South, as well as programs from the Gemini community awarded Exchange time on Keck and Subaru. Jump directly to the schedule for: