BackForwardInstrument:  GXRE/GRaBS 

Instrument details
Acronym GXRE/GRaBS
Full name Goddard X-Ray Experiment - Gamma Ray Burst Spectrometer
Purpose Observation of solar X-rays
Short description Spectrometer for X-ray emission from non-solar gamma-ray bursts in the energy range from ~20 keV to > 300 keV
Background Part of the Goddard X-Ray Experiment (GXRE)
Scanning Technique Observation of the interplanetary space from a low-inclination LEO
Resolution N/A (integrated view of the interplanetary space)
Coverage / Cycle Full Interplanetary space in 100 min (orbital period). Sampling at 10 s intervals
Mass Power Data Rate


Providing Agency NASA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1996 to 1996
Last update: 2017-05-21
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Solar and space environment monitors
  • Space radiometer or spectrometer
WIGOS Subcomponents
  • Subcomponent 1
  • X-ray spectrograph on GEO orbit
  • X-ray spectrometer at LEO
Mission objectives
Primary mission objectives
  • X-ray flux spectrum
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
X-ray flux spectrum*3 - highNo specific limitation.Interplanetary space viewing, high spectral resolution