Fermi was launched June 11, 2008.
GLAST -- Gamma-ray Large Area Telescope.
See the GI Program page.
Subscribe to the Fermi mailing lists.
Submit any questions through the FSSC helpdesk.
See the Fermi publications page.
Subscribe to the GCN (Gamma-ray burst Coordinates Network). When either the LAT or the GBM detects a burst, a series of messages will be sent to the ground through TDRSS, resulting in GCN Notices that are fixed format messages disseminated by e-mail, page or internet socket. Additional Notices will be sent out as a result of ground processing. In addition, as a result of further ground processing, the instrument teams may send out GCN Circulars, free format messages relaying information such as burst durations, fluences, spectral parameters, etc. Finally, check the GRB page on the FSSC website for links to other sources of burst information.
No. On March 16 2018, the spacecraft suffered a mechanical failure and can no longer move one of its solar arrays. While Fermi was able to resume normal operations quickly, ToOs will not be done for the forseeable future.
Check the posted observing timeline.
Check the data products page.
You may download the spacecraft data file directly from the LAT data server.
Put any coordinates and radius (or leave them blank) and select the time range that you are interested in (for example: 2008-08-04T15:43:37 to 2009-09-04T08:41:20 (239557417 to 273746480 seconds Mission Elapsed Time)). You can also enter "start, end" for the times.
Make sure that the box for "Spacecraft data file" is checked and the other are not checked. Then click on "Start Search". The spacecraft data file returned will be valid for the entire sky.
You can use wget to download the weekly files. For the weekly photon files, use the following command:
wget -m -P . -nH --cut-dirs=4 -np -e robots=off \
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/lat/weekly/photon/
and for the weekly spacecraft files, use:
wget -m -P . -nH --cut-dirs=4 -np -e robots=off \
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/lat/weekly/spacecraft/
You may wish to update the mission-long spacecraft file instead.
The mission-long spacecraft file is available at the FTP site:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/lat/mission/spacecraft/
See the Fermitools dowload page.
Start with Fermitools documentation. If you encounter trouble running the tools, please check the Troubleshooting and Error Reporting pages. If you still need assistance, submit questions through the FSSC helpdesk.