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.	191018
3FAPOS	FA Position (x-axis)	FA Position for entire mission	-3856.00	559.000	191018
3MRMMXMV	Max Pulse Width Modulation (last move)	MPWM	0.00000	16.0000	191018

Past 24 hours Past 7 days

SIM Movement Times

Summary 1999:212:02:20:48.0 to 2009:310:20:53:17.2

From	To	# Obs	Time/step	Ave Time	Std dev
ACIS-I	ACIS-S	414	0.00196631	33.3140	5.46642
ACIS-I	HRC-I	42	0.00135290	193.143	12.7806
ACIS-I	HRC-S	283	0.00135215	259.350	22.0747
ACIS-S	ACIS-I	457	0.00193628	32.7090	3.78660
ACIS-S	HRC-I	163	0.00130467	163.853	16.9525
ACIS-S	HRC-S	1080	0.00133431	232.867	30.1315
HRC-I	ACIS-I	58	0.00129447	184.690	17.5421
HRC-I	ACIS-S	149	0.00130217	163.356	12.0276
HRC-I	HRC-S	84	0.00157369	77.2857	55.7798
HRC-S	ACIS-I	362	0.00134210	257.370	15.4239
HRC-S	ACIS-S	939	0.00133517	232.711	16.5334
HRC-S	HRC-I	82	0.00137668	67.6098	8.44701
	Total	4113	0.00146994
			0.00134082	(excluding moves between Acis-S and Acis-I)

MTA SIM Trends
Maintained by bspitzbart at cfa.harvard.edu	last updated: Sat Nov 7 02:03:31 EST 2009