MTA SIM Monitoring

These pages track the movement of Chandra's Science Instrument Module (SIM). Motion between detectors and focus positions is plotted as well as a comparison to Mission Plannings expected positions. Data is processed using full-frame raw telemetry, so the temporal resolution is about 32s. Moves between ACIS-I and ACIS-S are usually shorter than 32s, so times shown below for these moves are understated. Processing parameters/assumptions include a maximum move time of 500s and minimum time "settled"at a particular detector of 1500s.

Mnemonic	Description	Contents	min	max	count
3TSCPOS	TSC Position (z-axis)	TSC Position and SI Positions for entire mission	-100808.	101855.	192475
3FAPOS	FA Position (x-axis)	FA Position for entire mission	-3856.00	559.000	192475
3MRMMXMV	Max Pulse Width Modulation (last move)	MPWM	0.00000	16.0000	192475

Past 24 hours Past 7 days

SIM Movement Times

Summary 1999:212:02:20:48.0 to 2009:329:00:22:56.8

From	To	# Obs	Time/step	Ave Time	Std dev
ACIS-I	ACIS-S	414	0.00196728	33.3140	5.46642
ACIS-I	HRC-I	42	0.00135290	193.143	12.7806
ACIS-I	HRC-S	287	0.00135252	259.415	21.9877
ACIS-S	ACIS-I	461	0.00193492	32.7028	3.77068
ACIS-S	HRC-I	165	0.00130299	163.612	17.0807
ACIS-S	HRC-S	1084	0.00133428	232.863	30.0877
HRC-I	ACIS-I	58	0.00129447	184.690	17.5421
HRC-I	ACIS-S	151	0.00130508	163.735	12.3907
HRC-I	HRC-S	84	0.00157369	77.2857	55.7798
HRC-S	ACIS-I	364	0.00134256	257.451	15.4651
HRC-S	ACIS-S	944	0.00133572	232.801	16.6267
HRC-S	HRC-I	83	0.00137579	67.5663	8.40469
	Total	4137	0.00146989
			0.00134104	(excluding moves between Acis-S and Acis-I)

MTA SIM Trends
Maintained by bspitzbart at cfa.harvard.edu	last updated: Thu Nov 26 02:02:51 EST 2009