Last Update 20-Mar-2024, Kim Tolbert (kim.tolbert at nasa.gov)
The Fermi Gamma-ray Space Telescope was launched in June 2008 to explore high-energy phenomena in the Universe. The RHESSI group was funded by the Fermi GI program to facilitate access to Fermi observations of high-energy solar phenomena, primarily solar flares. We provide quicklook products, data archives, and analysis software covering the solar X-ray and gamma-ray observations of both the Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT).
Please see Fermi Solar Flare X-Ray and Gamma-Ray Observations for links to descriptions of the GBM and LAT instruments and an explanation of the items we provide, which include
The directories here contain the following files:
gbm | Qlook directory contains the GBM solar flare list and daily and orbital (on RHESSI orbit times) plots; rsp directory contains detector response matrix files (called ...cspec... but used for ctime data as well) for each solar flare time interval for each separate GBM detector. | |
lat | Qlook directory contains the LAT significant event list and 4-day plots of LAT flux of >100 MeV solar gamma rays computed by two methods - light-bucket and maximum-likelihood. Year directories contain the LAT lightcurve and spectrum FITS files for each day of the Fermi mission and detector response matrix files for each solar exposure period. | |
lat_pass8_solar_class | For specific requested intervals, the daily LAT FITS files and response matrix files were created using the "Solar Class" specification in the Fermi software (instead of the "Source class"; solar class is for transients, compensates for high dead time during flares, and introduces a higher background). Time bins are 60 seconds. | |
lat_pass8_solar_class_20sbins | Same as lat_pass8_solar_class, but with 20 second bins.. |