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Fermi Gamma-ray Space Telescope
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Fermi Cycle 4 Guest Investigator Program Information

The phase-2 selection process is now complete. Notification letters will be sent by approximately mid July 2011.

For historical reference: Fermi Cycle-4 Proposer Instructions

The phase-1 selection process for the Fermi Gamma-Ray Space Telescope Cycle-4 Guest Investigator Program has been completed. A total of 213 proposals were received in response to the cycle-4 NRA and 85 have been selected by NASA Headquarters on the basis of scientific peer-review evaluation completed in early April. A list of the titles and abstracts of the selected programs is available here.

If your proposal was among the 85 selected, and you reside at a US institution, you are now invited to submit a phase-2 (budget) proposal. Detailed information on the phase-2 submission process is available at and in the selection letter you received from NASA Headquarters.

The Fermi Cycle 4 Guest Investigator (GI) proposals will be due on January 21, 2011. Several changes to the program are planned for Cycle 4. A joint Fermi-Suzaku program has been implemented through an agreement with the Suzaku project. Through this program Suzaku observing time can be awarded to successful proposers to the Fermi Guest Investigator Program. Another change is the possibility to propose for projects of two years duration (note: joint Fermi - NRAO, NOAO or Suzaku programs are excluded, i.e. requests for observing time on those facilities must be proposed one year at a time; click here for more info). Please refer to the Fermi amendment to the Fermi Amendment to the 2010 ROSES NRA for details on these opportunities. More information will be appearing here shortly. The Fermi Cycle-4 ARK/RPS proposal submission site for is now open.

Synopsis of the Fermi GI Program:

  • Fermi PIs can propose to:
    • Analyze GBM or LAT event data from the beginning of science operations
    • Analyze higher level data released by the LAT: lightcurves of bright or transient sources; and a point source catalog.
    • Carry out pointed LAT observations. However, proposers should be aware that very strong science justifications will be required in view of the probable low additional scientific benefit of such observations see the Fermi Users' Group (FUG) analysis at Pointed observations will follow the same open data policy as sky survey data, i.e., they will become public immediately.
    • Support correlated observations of gamma-ray sources at other wavelengths that are directly relevant to Fermi.
    • Perform theoretical studies of gamma-ray sources.
    • Obtain observing time on the NRAO and NOAO facilities or on the Suzaku satellite in support of Fermi-related science.
  • Fermi proposals may be submitted by investigators at both US and non-US institutions, but only PIs or Co-Is sited at US institutions may receive funding from NASA. Proposals without any investigators sited at a US institution will be evaluated (such an evaluation may assist an investigator obtain funding from a foreign funding agency), may result in a pointed LAT observation, or may be awarded Suzaku, NRAO or NOAO observing time.

Schedule and Checklist of Required Items for a Complete Fermi Proposal Submission

Proposers are urged to read carefully the Description of the Fermi Guest Investigator Program for (i.e., Appendix D.8 of ROSES-10). Below we distill the highlights.

Fermi's proposal process will have two Phases. In Phase 1 you will submit a cover page and a scientific justification; the cover page (generated by a webform) will include a maximum budget cap and the scientific justification should include a brief management section that describes the resources required (e.g., FTE). There is also an ARK/RPS form to summarize your proposed management plan and schedule. The page limit for this section is 4 pages for a Regular proposal, and 6 pages for a Large proposal. An additional page describing technical details of your proposed Suzaku, NRAO or NOAO observations must be added if you are applying under the 'joint proposal opportunity.' A peer review panel will review your Phase 1 proposal, and you will submit a Phase 2 budget proposal only if your Phase 1 proposal has been tentatively accepted.

As a resource for Cycle-4 proposers, the titles and abstracts of proposals approved for Fermi Cycles 1, 2, and 3 are available for viewing or download.

PIs of Large (multi-year) projects approved in previous cycles must submit a progress report annually on the Phase 1 proposal due date (rather than on the anniversary of the award date). A Large project may be funded for a total of 3 years.

Proposal submission is fully electronic. No paper copies are required. For Fermi's Cycle 3, the Phase 1 (science/technical/management) proposals must be submitted via ARK/RPS. Phase 2 budget proposals will be submitted through NSPIRES. Both systems require simple registration before use-see below for details.

Schedule for Fermi Cycle 4

Announcement (as part of ROSES 2008) October 22, 2010
Release of online proposal aids and documentation November 2010
Proposals Due January 21, 2011
Proposal Peer Review April 2011
Phase-2 Proposal Solicitation April 2011
Final Selections Announced June 2011
Fermi Cycle 4 Begins mid August 2011


  • Register now

    Before submitting proposals, you must register with the relevant systems (below).

    • Register with ARK/RPS at GSFC. This system will be used for Phase 1 of the proposal process. Assistance can be found at
    • Even though you will only use RPS for the Phase 1 proposal, register with NSPIRES in plenty of time to submit your Phase 2 (budget) proposal, and to assist us evaluate your Phase 1 (science/technical/management) proposal. Use the "Registration Information" section of the NSPIRES Homepage, if you don't already have an NSPIRES account. Requests for assistance should be addressed to
  • Phase 1 Proposal Submission - due January 21, 4:30 pm EST

    Required Items for a Complete Fermi Cycle 4 Phase 1 proposal submission:

    1. A cover page submitted electronically via ARK/RPS. The help file specific to Fermi provides detailed explanations of the various entries. On this cover page you will include:
      • Contact information for all investigators
      • Abstract
      • Proposal categorization (large/regular, type of source studied, type of proposal)
      • Identification of joint programs - NRAO-Fermi, NOAO-Fermi, or Suzaku-Fermi - if relevant or NASA's High-End Computing
      • NRAO, NOAO
      • Maximum Budget Request-this is the maximum funding request you will make if your proposal is accepted, in thousands of dollars. For a multi-year large proposal, enter the budget for the first year only. Regular proposals may request up to $100K per year and large proposals up to $200K per year.
      • NASA FTE Commitment-this is the number of FTEs of NASA civil servant time that will be supported by the program if the proposal is accepted. This is not the total number of FTEs that will be devoted to the research program. Most likely the value will not be an integer.
      • Target forms (if relevant)-source name, position, and type are required. NRAO and NOAO joint proposals, and LAT pointed observations, are required to enter the requested observing time for the target. Additional information should then be provided for LAT observations. A file with a list of targets can be uploaded by clicking on the 'Add Targets' button at the top and bottom of the form.
    2. A single PDF file containing the text of your scientific justification uploaded via the RPS Web site. The page limit for the scientific justification is 4 pages for a Regular proposal, and 6 pages for a Large Proposal. If you are applying for NRAO or NOAO observing time under the 'joint proposal opportunity' then you must add an additional page describing the observations. The PI's Vita is not required. The font shall be no smaller than 10 pt, and need not include section headings. Figures and references are included in the page limit. Pages should have at least 1-inch (2.5 cm) margins on all sides. This text should include:
      • Scientific description of your research plan.
      • A short statement demonstrating the relevance of the proposed research to NASA's objectives (see Table 1 of the Summary of Solicitation).
      • A management section that describes the resources required, including the expected contribution of the different investigators. This section should provide an estimate of the level of effort (e.g., 0.5 FTE of a postdoc), and the maximum budget request. If you are submitting a multi-year large proposal, please qualitatively describe the level-of-effort profile.
      • If you are proposing for Suzaku, NRAO, or NOAO observing time under the 'joint proposal opportunity,' you must add an additional page to the scientific justification describing the observation. This page will be read for a technical evaluation of your observation plan, and should not be used to continue the scientific justification for the observation. Note that you cannot apply for more than 200 hours or Target-of-Opportunity radio observations through the NRAO joint proposal opportunity, or for Target-of-Opportunity or survey program optical observations through the NOAO joint proposal opportunity, but must instead apply through the cooperative proposal opportunity of each program.
      • If you are proposing for funding under the NRAO-Fermi or NOAO-Fermi 'cooperative proposal opportunity,' please indicate this clearly in the science justification. You may not add an additional page describing the observations, but you should briefly justify the planned observations. Your proposal through the regular NRAO or NOAO proposal process must be reviewed by the relevant Time Allocation Committee (TAC) before the Fermi peer review panels; the TAC evaluation of your observing proposal will be forwarded to the Fermi peer review panel evaluating your Fermi funding proposal.

    Proposals to repoint the Fermi observatory or observe specific targets under aany of the joint observatory programs also require electronic submission of an ARK/RPS target form containing the source name and position (RA and Dec) of the target.

    Proposals must be received by 4:30 PM EST January 21, 2011. If you have difficulties submitting your proposal or have technical questions about the Fermi mission, see our Getting Help section.

  • Phase 2 Proposal Submission

    You will submit a phase 2 (budget) proposal only if your phase 1 proposal has been (tentatively) accepted. You will receive instructions in that happy event.

Supporting Materials for Submitting Fermi Proposals

Getting Help

If you have problems with the first Phase proposal and target forms in the ARK/RPS system, please see the ARK/RPS Quick Help page; questions about ARK/RPS should be sent to the RPS Help Desk, which is linked at the bottom of the Quick Help page.

If you have questions or problems with the NSPIRES system, please consult the NSPIRES Help Page, or submit your technical support question to

If you have questions about the Fermi instruments, mission, simulation tools, or overall proposal program, please contact the Fermi Science Support Center Help Desk.

If you'd like to be a Peer Reviewer

The Fermi Cycle 4 Peer Review will tentatively take place between April 3 and 6, 2011, in the Washington/Baltimore area. Travel and per diem will be supported by NASA, and participants typically spend 2-3 days at the review. Reviewers must have a PhD at the time of the Peer Review.

If you would like to be considered as a reviewer, please send an e-mail to the HEASARC Peer Review mailbox.