Home » Solar Instruments » RHESSI (Ramaty High Energy Solar Spectroscopic Imager)
RHESSI (Ramaty High Energy Solar Spectroscopic Imager)
STATUS
PI Instrument And Archive
AVAILABILITY
Data and analysis software are freely available on line.
REQUEST PROCEDURE
http://hesperia.gsfc.nasa.gov/rhessidatacenter/
Solar Instruments
Space-borne Hard X-ray(HXR)/Gamma-ray (GR) imaging spectrometer
CONTACT
Bob Lin
U. California Berkeley
University of California 366 LeConte Hall #7300 Berkeley, CA 94720-7300
boblin@ssl.berkeley.edu
SECONDARY CONTACT
Brian Dennis
GSFC
Solar Physics Laboratory (Code 671) Heliophysics Science Division Sciences and Exploration Directorate NASA Goddard Space Flight Center Greenbelt, MD 20771
301-286-7983
Brian.R.Dennis@nasa.gov
SPECIFICATIONS
Spectral Range~3 keV - ~17 MeV
Spectral Resolution~1 keV (FWHM) in the front segment up to ~100 keV; ~3 keV in the rear segment up to ~1 MeV increasing to ~5 keV at 20 MeV
Spatial Coverage and Resolution2.3 arcsec (HXR) to 35 arcsec (GR) over a Full Sun, ~1 degree
Temporal ResolutionTens of milliseconds for a basic image; 2 seconds (half a rotation of the spacecraft) for a detailed image
Data AccuracyN/A
Data PrecisionN/A
Physical ObservablesIndividual X-ray and gamma-ray photons.
Derived OutputsEnergy spectrum of X-ray and gamma-ray photons incident on the instrument. Images of X-ray and gamma-ray sources on the Sun during solar flares.
Concurrence OpportunitiesN/A
Expected LifetimeAt least through 2015.
Location or OrbitCircular Earth Orbit; Altitude: 600 km; Inclination to the equator: 38 degrees
Capability SummaryN/A
SchedulingN/A
Archival DataData available from Feb 12, 2002, to present
Number of Users~100
Planned UpgradesNone
Sub-InstrumentsNone
Data ProductsRaw time-sequenced telemetry data with read software. Flare catalog Quicklook light curves in different X-ray and gamma-ray energy ranges. Quicklook flare images in specified X-ray energy ranges.
University FacilityNo
National Ground BasedNo
SatelliteYes
Virtual ArchiveNo
REFERENCES
See web site.
REMARKS
N/A
UPDATED ON
4 Dec 2009 17:33