MTA Monitoring Report 05/15/15 - 05/21/15

Archive of all weekly reports
Archive of monthly reports

Although we prefer to quote CTI values of the cleanest data (FT <= -119.7 C, int time > 7000sec), the data that fulfills these conditions are getting rare. We now quote CTI based on temperature corrected data for Focal plane temperature <= -118.5 C).

The unit is now CTI/year not CTI/day.

Average of ACIS-I CCDs (MnKa) slope:	1.577e-6 CTI/year	(4.321e-9 CTI/day)
Detrended slope:	1.572e-6 CTI/year	(4.307e-9 CTI/day)

ACIS Warm Pixels

We display all bad pixels that have showed up in past, and, if any, previously unknown bad pixels appeared in the last 14 days. We also list hot pixels (defined as 1000 above the average of bias background). Warm columns 509-514 are probably due to boundaries.

New definitions of warm pixels and flickering pixels (May 15, 2014). If a pixel displays the level beyond a threshold for more than 70% of the time in the past two weeks, the pixel is categorized as a "warm" pixel. If a pixel is above the threshold more than 30% of time but less than 70% of the time in the past two weeks, the pixel is categorized as a "flickering" pixel.

	CCD0	CCD1	CCD2	CCD3	CCD4	CCD5	CCD7	CCD8
Previously Unknown Bad Pixels
Current Warm Pixels				(21,95)		(607,281) (357,303) (369,376) (263,317) (367,511) (161,206) (341,427)	(335,412)
Flickering Warm Pixels	(692,141) (667,782) (153,205) (143,700)	(910,239) (802,665)	(726,537)	(811,637)		(669,577) (233,314) (258,797)		(197,241) (881,53)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					884	510 512 1022	512 1022
Flickering Warm Column Candidates

ACIS Focal Plane Temperature

For this period, 5 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
135.95	-115.02	1.20
136.66	-117.55	0.35
137.92	-117.70	0.28
138.76	-115.31	0.16
141.32	-117.61	0.21

Weekly focal plane temperature with sun angle and altitude overplotted. Sun angle is the solar array angle, that is the angle between the sun and the optical axis (+X axis). Altitude varies from 10 kkm to 135 kkm.

SIM Movements

8 TSC moves this period

weekly average time/step	0.00135 s
mission average time/step	0.00136 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	05/15/15	05/16/15	05/17/15	05/18/15	05/19/15	05/20/15	05/21/15	yellow limits (lower) upper	red limits (lower) upper	Units	Description
OHRTHR27	297.35	297.34	297.34	297.34	297.35	297.34	297.34	(295.48) 297.15	(279.37) 307.15	K	RT 20 : PERISCOPE
OHRTHR42	294.63	294.60	294.66	294.68	294.68	294.58	294.60	(292.15) 294.37	(279.37) 307.15	K	RT 133: PERISCOPE
OHRTHR43	294.62	294.56	294.70	294.74	294.74	294.42	294.55	(291.59) 293.26	(279.37) 307.15	K	RT 134: PERISCOPE
3TSMXCET	273.29	270.79	265.81	273.29		270.79	268.30	(153.15) 263.15	(148.15) 353.15	K	-X TURTLE SHELL NR HRC CEA
3TSMXSPT	310.70	308.21	305.71	305.71		305.71	305.71	(203.15) 294.15	(148.15) 354.15	K	-X TURTLE SHELL NR ACIS SS

IRUs

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
16966	ACIS-7	NONE	SgrA*	OK	OK
17231	ACIS-01236	NONE	Abell 1795 outskirts	OK	OK
17626	ACIS-01236	NONE	Abell 1795 outskirts	OK	OK
17656	ACIS-01236	NONE	Abell 1795 outskirts	OK	OK
17254	ACIS-0123	NONE	Praesepe	OK	OK
17657	ACIS-5678	LETG	Centaurus A	OK	OK
17255	ACIS-0123	NONE	Praesepe	OK	OK
16461	ACIS-0123	NONE	Chandra Deep Field-South	OK	OK
16949	ACIS-2367	NONE	G1.9+0.3	OK	OK
16723	ACIS-7	NONE	GRO J1750-27	OK	OK

Min/max envelopes in dark blue appear on the trending plots. The envelopes are 4th degree fits to the monthly minimum and maximum values for each MSID. The final polynomial form and binning are still being experimented with. We will soon add to the trending pages a report of the fits and predictions they give on future limit violations. The light blue curve is our original smoothing of all the data over 30 day moving boxcars. The green/yellow line is a linear fit to all the data; the break occurs at a limit change.

HRMA CAP

Gradients HRMA CAP
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HCAPGRD1	0.09	9.250e-03	-2.056e-03	-NaN	K	RT100-RT101: HRMA CAP circum
HCAPGRD2	0.03	2.415e-02	-4.492e-03	-2.693e-04	K	RT100-RT104: HRMA CAP ridial
HCAPGRD3	-0.06	5.641e-03	5.896e-04	-NaN	K	RT101-RT102: HRMA CAP circum
HCAPGRD4	-0.05	6.351e-03	5.870e-04	9.103e-05	K	RT101-RT104: HRMA CAP ridial
HCAPGRD5	0.12	7.068e-03	5.503e-04	-NaN	K	RT102-RT103: HRMA CAP circum
HCAPGRD6	-0.12	1.379e-02	4.442e-04	1.274e-04	K	RT102-RT105: HRMA CAP ridial
HCAPGRD7	-0.06	5.313e-03	-1.351e-03	-NaN	K	RT103-RT101: HRMA CAP circum

HRMA FAP

Gradients HRMA FAP
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HFAPGRD1	-0.01	2.737e-03	1.158e-04	-NaN	K	RT1-RT2: HRMA Forward Aperture Plate
HFAPGRD2	0.04	4.433e-03	-5.955e-04	7.518e-05	K	RT1-RT4: HRMA Forward Aperture Plate
HFAPGRD3	0.03	2.964e-03	-2.771e-04	-1.042e-04	K	RT2-RT3: HRMA Forward Aperture Plate
HFAPGRD4	0.07	2.979e-03	-5.012e-04	-8.249e-05	K	RT2-RT5: HRMA Forward Aperture Plate
HFAPGRD5	-0.02	3.171e-03	2.106e-04	2.601e-06	K	RT3-RT1: HRMA Forward Aperture Plate
HFAPGRD6	0.02	2.203e-03	-2.194e-04	3.542e-05	K	RT3-RT6: HRMA Forward Aperture Plate
HFAPGRD7	0.02	9.654e-04	-2.200e-05	-6.154e-06	K	RT4-RT5: HRMA Forward Aperture Plate
HFAPGRD8	-0.02	1.650e-03	1.103e-04	5.366e-05	K	RT5-RT6: HRMA Forward Aperture Plate
HFAPGRD9	3.289e-03	1.648e-03	-1.303e-04	-7.498e-05	K	RT6-RT4: HRMA Forward Aperture Plate

Spacecraft Struts

Gradients Spacecraft Struts
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
HSSTRTGRD1	-1.67	2.14	-6.433e-01	-1.344e-01	K	RT75-RT76: Spacecraft Struts
HSSTRTGRD2	-4.83	1.69	-4.699e-01	2.922e-02	K	RT76-RT77: Spacecraft Struts
HSSTRTGRD3	-0.14	0.37	7.331e-02	1.157e-02	K	RT77-RT78: Spacecraft Struts
HSSTRTGRD4	5.78	1.87	5.513e-01	-1.291e-02	K	RT78-RT79: Spacecraft Struts
HSSTRTGRD5	0.70	1.13	2.710e-01	4.770e-02	K	RT79-RT80: Spacecraft Struts
HSSTRTGRD6	-1.660e-03	3.661e-03	-2.776e-04	-2.404e-05	K	RT80-RT75: Spacecraft Struts

If you have any questions, please contact: swolk@head.cfa.harvard.edu