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.	155274
3FAPOS	FA Position (x-axis)	FA Position for entire mission	-3856.00	559.000	155274
3MRMMXMV	Max Pulse Width Modulation (last move)	MPWM	0.00000	16.0000	155274

Past 24 hours Past 7 days

SIM Movement Times

Summary 1999:212:02:35:11.1 to 2008:185:17:21:20.9

From	To	# Obs	Time/step	Ave Time	Std dev
ACIS-I	ACIS-S	343	0.00194980	33.1429	4.69914
ACIS-I	HRC-I	36	0.00135409	193.333	11.5140
ACIS-I	HRC-S	248	0.00135513	259.952	22.1661
ACIS-S	ACIS-I	368	0.00193317	32.7935	3.87555
ACIS-S	HRC-I	146	0.00130497	163.863	16.7442
ACIS-S	HRC-S	923	0.00133971	233.820	31.2390
HRC-I	ACIS-I	52	0.00130492	186.308	17.0691
HRC-I	ACIS-S	131	0.00130678	164.061	12.3735
HRC-I	HRC-S	74	0.00160144	78.6487	59.2382
HRC-S	ACIS-I	313	0.00134142	257.329	14.6330
HRC-S	ACIS-S	812	0.00133794	233.212	16.5047
HRC-S	HRC-I	74	0.00136701	67.1351	7.46925
	Total	3520	0.00146507
			0.00134456	(excluding moves between Acis-S and Acis-I)

MTA SIM Trends
Maintained by bspitzbart at cfa.harvard.edu	last updated: Fri Jul 4 10:17:35 EDT 2008