Email Sep 11
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At the morning pass today 9/11 (254:11:10),  it was noted that SCS 107 had run on Chandra.  
After review of the error logs it was found that at 254:07:51:39 the HRC radiation monitor 
tripped an SCS 107 safing event.  This was due to a powerful solar proton storm which began 
on 253:16:06 and is still ongoing at this time.   Observed GOES P13 proton flux level were 
high enough to induce such an occurrence.  ACE P3 rates are currently elevated but below 
their thresholds. 

Science instruments safed properly.   While no CME is expected with this event, proton 
rates are expected to remain high for at least 48 hours.  Clean up actions today's afternoon 
pass  include CAPs to disable SCS-29, change the ObsID, and warm boot ACIS. 

SOT shift report 2017-09-11
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Yesterday afternoon region 2673 produced an X8 X-ray flare
followed by a powerful solar proton storm. Proton rates are
expected to remain high for the next 48 hours.
Solar activity is expected to remain high with a chance for
X-class flares on day one (11 Sep) and expected to be very low
with a chance for a C-class flares and a slight chance for an
M-class flare on day two (12 Sep) and expected to be very low
with a slight chance for a C-class flare on day three (13 Sep).

SOT shift report 2017-09-12
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oday early in the morning ACE P3 rates reached their threshold.
Hard proton rates are descending but remain high.
Solar activity is expected to be very low with a chance for
a C-class flares and a slight chance for an M-class flare on
day one (12 Sep) and expected to be very low with a slight chance
for a C-class flare on day two (13 Sep) and expected to be very
low on day three (14 Sep).


SOT shift report 2017-09-13
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Predicted HRC shield rates are currently about 20% over the threshold 
but have been very flat over the last 12 hours.  ACE P3 rates are at 
10K and also flat.