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.	314713
3FAPOS	FA Position (x-axis)	FA Position for entire mission	-24904.0	559.000	314713
3MRMMXMV	Max Pulse Width Modulation (last move)	MPWM	0.00000	16.0000	314713

Past 24 hours Past 7 days

SIM Movement Times

Summary 1999:212:02:35:11.1 to 2013:143:19:51:25.3

From	To	# Obs	Time/step	Ave Time	Std dev
ACIS-I	ACIS-S	562	0.00198684	33.5018	6.24121
ACIS-I	HRC-I	51	0.00134320	191.686	13.2627
ACIS-I	HRC-S	371	0.00134941	258.663	21.5031
ACIS-S	ACIS-I	651	0.00193203	32.5960	3.63419
ACIS-S	HRC-I	221	0.00129032	161.973	18.6825
ACIS-S	HRC-S	1494	0.00131692	229.858	28.5340
HRC-I	ACIS-I	74	0.00130303	185.784	16.9982
HRC-I	ACIS-S	195	0.00129821	162.892	13.9662
HRC-I	HRC-S	101	0.00153460	75.3663	51.0928
HRC-S	ACIS-I	471	0.00134075	256.917	15.8560
HRC-S	ACIS-S	1289	0.00132735	231.327	16.9949
HRC-S	HRC-I	97	0.00137203	67.3814	8.39325
	Total	5577	0.00146606
			0.00132949	(excluding moves between Acis-S and Acis-I)

MTA SIM Trends
Maintained by bspitzbart at cfa.harvard.edu	last updated: Sat May 25 02:03:39 EDT 2013