Latest revision  23 September 1999

TJD 11439 = September 18, 1999

   Strange Burst Trigger Number 7770

Trigger Number 7770 triggered on one detector (no. 5) instead of the
expected normal two detectors.  The reason is unknown.
DSELB is "--5-----" = "00100000" which becomes the hex value 20.

The DSELH1,2,3,4 values in all files are strange also.  They are
 5,2,6,4  instead of the values  5,1,7,3  which would appear to be
what the eight-detector DISCLA plots show.

Plots of the time histories of the individual DSELH detectors in 
the HERB data (which are complete, i.e., 128 records) with channels 
summed from 1 through 126) seem consistent with the strange DSELH 
values (5,2,6,4).

Other data types involving the individual triggered detectors (in
this case only one) or the sum of the triggered detectors (in DSELB) 
seem to be valid; their rates, in at least most cases, are consistent
with one detector.