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United States Gemini Program

Applying for U.S. Observing Time on the Gemini 8-m Telescopes through NOAO

The Gemini Observatory has announced a Call for Proposals for the Gemini North and Gemini South Telescopes for observations during the 2014B observing period (1 August 2014 - 31 January 2015). Please read the information below before starting a proposal.

The 2014B instrumentation for Gemini North includes GMOS-N (Gemini optical imager, Multi-Object Spectrograph, and IFU), GNIRS (Gemini Near InfraRed Spectrograph), NIFS (near-IR IFU spectrogaph). and NIRI (Near InfraRed Imager), In addition, proposals for GNIRS, NIRI and NIFS may also request Altair, the facility AO system, with natural or laser guide star AO. TEXES (U. Texas high-res mid-IR spectrograph) and DSSI (dual-channel speckle imager) will be offered as visitor instruments pending sufficient community demand.

For Gemini South, instrumentation includes FLAMINGOS-2 (near-IR imager/spectrograph), GMOS-S, and GSAOI (near-IR AO imager) with GeMS (Multi-Conjugate AO system). GPI (near-IR AO imager/polarimeter/IFU)

Exchange time is available with all facility instruments and four visiting instruments at Subaru.

About 84% of the time on Gemini-North and 83.5% of the time on Gemini-South will be available for science programs. The US share of science time available in this call is estimated as 82 nights at Gemini-North and 76 nights at Gemini-South. NOAO strongly encourages programs of all lengths from an hour to several nights, and ranging from short pilot programs to large programs that would have a major scientific impact. The NOAO TAC will be instructed to recommend a broad distribution of programs.

Queue programs assigned by the ITAC into Band 1 will be eligible for rollover for the next suitable semester. Eligibility for rollover will be reviewed at the 2014B TAC and finalized by the ITAC.

Details about preliminary instrument schedules, windows of accessibility for right ascension, and a summary of new capabilities are available on the Gemini Call for Proposals website.

Investigators may submit proposals for Gemini observations through the standard NOAO proposal form, which allows a single proposal to be submitted requesting time on any combination of resources offered by NOAO, including Gemini. Investigators proposing for Gemini time only are encouraged to submit their proposals using the Gemini Phase I Tool (PIT). Proposals are due by 11:59 pm MST on 31 March 2014.

Applying for Gemini Time

Applications for time from the U.S. share of Gemini should be submitted through NOAO, which is responsible for scientific and technical assessment. NOAO will provide assistance to investigators preparing proposals for Gemini time.

Investigators who are applying only for time on Gemini telescopes should use the Gemini Phase I Tool (PIT) to prepare their observing proposals. PIT is available from the Gemini Observatory at Gemini proposals prepared using the PIT will be formatted for the NOAO Telescope Allocation Committee. Investigators interested in using the PIT should note restrictions and guidelines listed on the PIT Submissions help page of the NOAO proposal instructions.

All "joint" or "multi-partner" Gemini programs must be submitted through the PIT, which allows the submission of a single proposal to multiple national TACs. Investigators wishing to submit different proposals related to the same project to more than one national TAC may still do so, but the programs will not be combined at Gemini (and will thus have separate PIs, ID numbers, phase-II submissions, etc.)

Investigators wishing to submit requests for Gemini and additional NOAO resources on a single proposal may do so using the NOAO observing proposal form available at

The NOAO TAC will review and rank Gemini proposals for the U.S. share of Gemini time. The ranked proposals from the several partner countries will be merged together for review by the Gemini International Time Allocation Committee, which will resolve any conflicts.

Notification of the award of time will be sent to the investigators by NOAO following final approval of the draft schedule by the Director of the Gemini Observatory. NOAO will notify investigators whether or not Gemini observing time has been granted by email in June, as soon as the schedule is available.


Instruments which are being offered in the 2014B semester are listed below. More detailed information is available about each instrument from the Gemini Observatory via the links below.

User Support

NOAO support for U.S. observing time on the Gemini 8-m telescopes is organized within the NOAO System Science Center. NSSC astronomers in Tucson and La Serena are serving as Gemini Instrument Scientists, with the responsibility to assist investigators proposing for and receiving time on Gemini.

If you have questions about Gemini instruments or about how to use those instruments, please contact NOAO's Gemini Instrument Scientists for help. You may also send email to us at, or direct queries through the Gemini HelpDesk.

If you would like feedback about your proposal before you submit it, after you have written your proposal, you can contact one of the NOAO Gemini Instrument Scientists for an evaluation of the observing details. This is intended to be a check on technical aspects, not an analysis of the observing strategy or the scientific justification. The NSSC staff will only be able to respond to requests made well in advance of the proposal submission deadline.

Proposal comments and/or suggestions, may be directed to

NOAO Proposal Form

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NOAO is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation. The NSSC represents U.S. scientific, technical, and instrumentation interests in the international community of the Gemini project. The NSSC is a division of the National Optical Astronomy Observatory (NOAO).
Last updated: 3 March 2014.

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NOAO >  NSSC >  US Gemini Proposals

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