Fermi Science Support Center

The Fermi Science Support Center (FSSC) runs the guest investigator program, creates and maintains the mission time line, provides analysis tools for the scientific community, and archives and serves the Fermi data. This web site is the portal to Fermi for all guest investigators.

This view shows the entire sky at energies greater than 1 GeV based on five years of data from the LAT instrument on NASA's Fermi Gamma-ray Space Telescope. Brighter colors indicate brighter gamma-ray sources.
This view shows the entire sky at energies greater than 1 GeV based on five years of data from the LAT
instrument on NASA's Fermi Gamma-ray Space Telescope. Brighter colors indicate brighter gamma-ray sources.
Image Credit: NASA/DOE/Fermi LAT Collaboration

Look into the "Resources" section for finding schedules, publications, useful links etc. The "Proposals" section is where you will be able to find the relevant information and tools to prepare and submit proposals for guest investigator projects. At "Data" you will be able to access the Fermi databases and find the software to analyse them. Address all questions and requests to the helpdesk in "Help".

Fermi Observations for MW 369

Mission Week 369 starts with a 10 minute pointed "freeze" observation during which the updated survey profile for this week is loaded. That profile, using the regular 50 degree rock angle, then continues until day 179 (2015-06-28) at 20:44 when a second 10 minute freeze observation is done. At that time a second survey profile is loaded which has a 55 degree rock angle. This is required because the beta angle (angle between the orbit plane and the Sun) exceeds 45 degrees and the larger rock angle avoids possible technical issues.

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Latest News

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Jun 26, 2015

Stage-I Selections for the Cycle-8 GI Program Completed

The stage-I selections for the Cycle-8 Guest Investigator Program have now been completed. A list is available here. The selection letters and peer evaluations will be distributed in the near future.

Jun 24, 2015

Pass 8 Data Available for the LAT

The FSSC is pleased to announce the availability of Pass 8 data for the LAT. The Pass 8 data have been reprocessed from the raw data using the latest calibrations and updates. The improvements include a better PSF, improved energy measurement, and increased acceptance across the whole energy band. This data release includes a new method for sub-selecting photons from the event data. In order to analyze Pass 8 data you must upgrade to the new v10r0p5 version of the Fermi science tools.
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Mar 9, 2015

Aperture Photometry Light Curves for LAT 3FGL Catalog Sources

Aperture photometry light curves of all 3FGL sources with 30 day time resolution, together with power spectra of these, are now available. These will normally be updated weekly. In addition, results of an automatic search for flaring 3FGL sources are also provided with weekly updates. Light curves and power spectra are here. Flaring sources are here.

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