Email from Feb 26, 2012
-----------------------

Due to high ACE P3 flux it was decided to safe the science instruments. 
CAP 593 was used to activate SCS-107 at 2012:058:03:24:21z. SCS-107 ran nominally.

The current plan is to aim to resume observing using the uplink opportunity 
at begins at 10:10pm EST. The schedule will be reworked to ensure that 
ObsIDs 13279, 13719, and 13785 remain in the schedule. Target of a release 
for a review tomorrow afternoon.


From Feb 27, 2012 SOT report
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Due to high ACE P3 flux it was decided to safe the science instruments. 
CAP 593 was used to activate SCS-107 at 2012:058:03:24:21z. SCS-107 ran nominally.
The current plan is to resume observing using the uplink opportunity that 
begins at 10:10pm EST. The schedule will be reworked to ensure that ObsIDs 13279, 
13719, and 13785 remain in the schedule. 

UTC 2012:058:13:47:02 (Feb27) f_ACE 2.56e+04 F_CRM 3.18e+08 Kp 3.3 R km 128540A

                    Currently scheduled FPSI, OTG : HRC-S NONE
                                     Estimated Kp : 3.33
        ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.56e+04
           GOES-15 P2 flux, in RADMON P4GM  units : 8.61
           GOES-13 P2 flux, in RADMON P4GM  units : 9.97
           GOES-15 P5 flux, in RADMON P41GM units : 0.12
           GOES-13 P5 flux, in RADMON P41GM units : 0.15
           GOES-13 E > 2.0 MeV flux (p/cm^2-s-sr) : 305.0
                                 Orbit Start Time : 2012:057:20:59:02
              Geocentric Distance (km), Orbit Leg : 128378 A
                                       CRM Region : 2 (Magnetosheath)
           External Proton Flux (p/cm^2-s-sr-MeV) : 5.1528e+04
         Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.0000e+00
  External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.5477e+09
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.1833e+08 


From Cahndra X-ray Observatory Report (Mar 02, 2012)
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During the last week the observing schedule was interrupted due to
high radiation associated with solar activity. The loads were halted
at 10:24pm EST on Feb 26 through a ground command to execute the SI
Safing SCS 107. This ensured that the accumulated radiation dose for
ACIS remained below the allowed threshold.  All spacecraft actions
were nominal. A real-time procedure was executed on Feb 27 to disable
SCS-29, which was enabled during the safing sequence. An additional
real-time procedure was executed on Feb 27 to start a collection of
ACIS CCD charge-transfer inefficiency data.