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RHESSI Level-0 Data

(2002). RHESSI Level-0 Data. [Data set]. Solar Data Analysis Center.

ResourceID
spase://NASA/NumericalData/RHESSI/Level_0/PT0.1S

Description
The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) was a NASA Small Explorer mission launched in 2002 to investigate the physics of solar flares through high‑resolution X‑ray and gamma‑ray imaging spectroscopy. The spacecraft carried nine cryogenically cooled high‑purity germanium detectors that provided precise measurements over an energy range of approximately 3 keV to 17 MeV. RHESSI operated for more than sixteen years, delivering detailed observations of particle acceleration, energy release, and high‑energy radiation from the solar atmosphere. Raw Level‑0 packed telemetry data for the entire mission are stored in FITS files, each typically covering one 90‑minute spacecraft orbit. These files contain the time of arrival and measured energy of every detected hard X‑ray photon in the original compressed telemetry format. The RHESSI software in SSW is required to unpack these data streams and construct calibrated spectra, time profiles, and images. Level‑0 files follow the naming convention hsi_yyyymmdd_hhmmss_ver.fits, where the date and time specify the start time of the file and ver is a version number.

Metadata Rights
: Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.

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Details

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/RHESSI/Level_0/PT0.1S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
RHESSI Level-0 Data
ReleaseDate
2026-03-02 00:08:46Z
RevisionHistory
RevisionEvent
ReleaseDate
2026-04-09 00:08:46
Note
Updated Description and TimeSpan
Description
The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) was a NASA Small Explorer mission launched in 2002 to investigate the physics of solar flares through high‑resolution X‑ray and gamma‑ray imaging spectroscopy. The spacecraft carried nine cryogenically cooled high‑purity germanium detectors that provided precise measurements over an energy range of approximately 3 keV to 17 MeV. RHESSI operated for more than sixteen years, delivering detailed observations of particle acceleration, energy release, and high‑energy radiation from the solar atmosphere. Raw Level‑0 packed telemetry data for the entire mission are stored in FITS files, each typically covering one 90‑minute spacecraft orbit. These files contain the time of arrival and measured energy of every detected hard X‑ray photon in the original compressed telemetry format. The RHESSI software in SSW is required to unpack these data streams and construct calibrated spectra, time profiles, and images. Level‑0 files follow the naming convention hsi_yyyymmdd_hhmmss_ver.fits, where the date and time specify the start time of the file and ver is a version number.
PublicationInfo
Authors
The RHESSI Consortium: UC Berkeley (USA); NASA Goddard Space Flight Center (USA); The Paul Scherrer Institut (Switzerland); Spectrum Astro (USA)
PublicationDate
2002-05-24 00:00:00Z
PublishedBy
Solar Data Analysis Center
Contacts
Role Person StartDate StopDate Note
1. FormerPI spase://SMWG/Person/Robert.P.Lin
2. PrincipalInvestigator spase://SMWG/Person/Samuel.Krucker
3. FormerPI spase://SMWG/Person/Brian.R.Dennis
4. ProjectScientist spase://SMWG/Person/Albert.Y.Shih

InformationURL
Name
Overview of Access to RHESSI data
URL
Description
see also https://hesperia.gsfc.nasa.gov/hessi/hessi_team.htm
PriorIDs
spase://VSPO/NumericalData/P_RHESSI_HDR_MULTIDS
spase://VSPO/NumericalData/RHESSI/HESSI/PT0.1S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
RHESSI Level-0 Archive
URL
Format
FITS
ProviderProcessingLevel
UNCALIBRATED
InstrumentIDs
MeasurementType
ImageIntensity
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
2002-02-07 02:29:00Z
StopDate
2018-08-05 20:30:40Z
Cadence
PT0.1S
ObservedRegion
Sun
ObservedRegion
Sun.Chromosphere
ObservedRegion
Sun.Photosphere