See http://cxc.harvard.edu/mta/SOT_reports/sot-shift.html

Shift H4574.
    Start at 029:21:00  GMT
             = 4:00pm 29 Jan 2012 EST
    End   at 029:22:20  GMT
             = 5:00pm 29 Jan 2012 EST

ACIS SOT Shift Report 2012-01-29 H4574

ACIS Personnel: Paul Plucinsky

PLAN
- --------

We intend to run CAP1224C to execute a long ECS measurement.

SUMMARY:
- --------

The HRC anti-Co rates and the E1300 rates were low but not as low as
we would like.  The rates were low enough that we do not risk an
unintentional SCS-107 trip, so we decided to proceed with CAP1224C.
CAP1224C was executed as expected.  The ECS measurement should produce
about 12ks of data.

TIMELINE (GMT day 311-312)
- ----------------------
029:21:00	AOS on DSS 54
029:21:10	Mike runs the HRC CAP to verify the anti-Co rates are
                low enough to resume science
029:21:12	FP Temp= -119.7 C
029:21:15	Mike reports the HRC shield rates are at ~140, low
		enough to resume science
029:21:20	command in load to turn on the transmitters
029:21:21	start CAP 1224C
029:21:22	HRC anti-Co=140, E1300=432 cts/sample or 7.8
		cts/s/cm2/sr, this is above our guideline but close
		enough that Mike says we can go
029:21:22	SCS-107 is enabled
029:21:23	OC/CC set OBSID to 62683
029:21:25	OC/CC uplink 1A_CTI4_24HR_135.CLD
029:21:27	enable and activate SCS 135
029:21:28	command echoes visible, startScience
029:21:29	E1300=415 cts/sample, HRC anti-Co at 141
029:21:51	biases complete
029:21:52	first event data, event rates look nominal, threshold
		crossing rates look nominal,
		delta overclocks are negative and between -10 and -20
029:21:53	the ACIS door is still open
029:22:00       event rates after about 162-163 frames 

Threshold      | 11207  | 661  | 11916  | 12071  | 14905  | 21625 |
Filtered       |   375  |  85  |   389  |   370  |   372  |   791 |
Events         |    39  |  37  |    29  |    37  |    24  |    40 |
Tot Events     |  6125  |8047  |  5854  |  6365  |  5723  |  6152 |	
 		
029:22:01	tell OC/CC that all data looks nominal from ACIS
029:22:19	this ECS measurement should produce about 14.8 ks of
		data
029:22:20	LOS