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HESSI Data Handling

HESSI Data Products
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FITS files: Telemetry Packets with Appended Catalog Data |
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Daily Catalog Files, online |
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Whole Mission Flare list, online |
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Filedb FITS file, contains File names, time ranges, online |
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CD List file, contains CD names, Files on each CD, online |
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Catalog for vc2 data, for each contact, online, but not permanently |

Hessi Catalog:
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Observing Summary: (Implemented) |
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spin-averaged count rates in 9 energy bands, summed over
detectors |
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particle detector rates |
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modulation variance, 2 Coarsest collimators |
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S/C position |
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Instrument Log: (Partially Implemented) Housekeeping, State
of Health data for systems |
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Flare List: (Implemented) |
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Id number |
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Start, peak and end times, in energy range [3.0, 20.0] keV |
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peak count rate |
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total counts |
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Highest energy of observed photons |
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Flare position, arcsec from Sun center |
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Flags for flares that start/end in Eclipse or SAA |
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Spectral catalog: (Not Implemented) |
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count and photon spectra as a function of time |
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Thermal + double power law photon spectra, |
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dE = E/2 energy resolution. |
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Image catalog: (Partially Implemented) |
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Images in the energy bands given by the Observing Summary,
If possible, Cadence determined by Count Rate. (Presently only 4 second
peak) |

Hessi Soc Tests:
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Local Tests: vc1 & vc3 simulated in raw data files, (no
headers or frames). Realistic orbit data, HSI_CONTACT2FITS run from IDL
session by JMM. Results in simulated data files online at http://hessi.ssl.berkeley.edu/data/test_data/. |
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Test of SOC scripts: vc1 & vc3, simulated data, passed
into ITOS, HSI_CONTACT2FITS run in script by TEQ, script then queues the
data for CD production and FTP. |
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End-to-End test: vc1 & vc3 from HESSI, no orbit data,
no "flare", FITS file with Obs summary, but no flare list. |
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