Hard X-ray Observations

The ratio of the counts in the two

medium energy bands HXT M2/M1 yields a photon spectral index of g~4 during the initial decay phase of the flare.

All channels show a count rate

below background levels by about 17:00 UT, some 40 minutes prior to the first CDS observations.

Yohkoh HXT

Background level in HXT L channel is 1.25 cts/s/SC or 80 cts/s
summed over all detectors. Thus, a background subtracted signal strength of 26 cts/s will produce a 2s detection in the integrated HXT L channel.

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Responsible NASA Official:  Gordon D. Holman Web Design:  Merrick Berg, Brian Dennis, Gordon Holman, & Gilbert Prevost Heliophysics Science Division NASA/Goddard Space Flight Center Laboratory for Solar Physics/ Code 671 Greenbelt, MD, 20771, USA Gordon.D.Holman@nasa.gov

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