M&TA December 2021 Monthly Report

ACIS

ACIS DOSE Registered-Photon-Map

The steps we took to compute the dose map are;

Level 1 Event files for a specified month are obtained from archive.
Image data including I2, I3, S2, S3 CCDs are extracted from all event files.
All the extracted image data were merged to create a month long exposure map for the month.
The exposure map is opened with ds9, and check a distribution of count rates against energy. From this, estimate the upper threshold value. Any events beyond this upper threshold are assumed erroneous events such as bad pixels.
Using this upper threshold, the data is filtered, and create a cleaned exposure map for the month.
The exposure map from each month from the Sep 1999 is added up to create a cumulative exposure map for each month.
Using fimgstatistic, we compute count rate statistics for each CCDs.
For observations with high data drop rates (e.g., Crab nebula, Cas A), we corrected the

Please check more detail plots at Telemetered Photon Dose Trend page.

December registered-photon-map in fits

December Dose Map

TOTAL

CCD I3

CCD S3

Statistics:
# IMAGE     NPIX     MEAN        RMS        MIN     MAX
ACIS_dec21 6004901       7.098         9.033           0.0     2529


I2 node 0  262654	7.569930	3.441753	0.0	 74.0
I2 node 1  262654	8.080646	4.402403	0.0	1225.0
I2 node 2  262654	7.902206	3.441058	0.0	 90.0
I2 node 3  262654	7.929969	7.160745	0.0	2155.0

I3 node 0  262654	8.307679	3.760946	0.0	 91.0
I3 node 1  262654	8.087252	3.506758	0.0	134.0
I3 node 2  262654	7.913700	3.396381	0.0	 73.0
I3 node 3  262654	8.094732	3.554803	0.0	155.0

S2 node 0  262654	8.315445	6.085623	0.0	2529.0
S2 node 1  262654	8.428529	3.915966	0.0	211.0
S2 node 2  262654	8.491422	5.645328	0.0	2100.0
S2 node 3  262654	8.473557	3.838916	0.0	507.0

S3 node 0  262654	12.455875	4.912584	0.0	 83.0
S3 node 1  262654	14.524572	5.365246	0.0	215.0
S3 node 2  262654	14.246745	4.568800	1.0	 75.0
S3 node 3  262654	12.699992	4.194607	0.0	 55.0

Jul 1999 - Dec 2021 registered-photon-map in fits

Cumulative Dose Map

TOTAL

CCD I3

CCD S3


Statistics:
 IMAGE     NPIX      MEAN        RMS           MIN      MAX
ACIS_total   6004901       2538.622         3262.199           0.0   140294


I2 node 0  262654	2195.517586	441.237548	471.0	13199.0
I2 node 1  262654	2309.223604	626.767055	484.0	126101.0
I2 node 2  262654	2337.194361	495.660201	503.0	13734.0
I2 node 3  262654	2342.795546	605.541260	476.0	28828.0

I3 node 0  262654	2518.241594	619.397581	465.0	13597.0
I3 node 1  262654	2595.234971	1728.417770	501.0	55734.0
I3 node 2  262654	2308.832627	432.837509	472.0	13728.0
I3 node 3  262654	2300.720275	465.004646	439.0	34531.0

S2 node 0  262654	2959.350950	479.691807	1607.0	22306.0
S2 node 1  262654	3136.894316	711.947759	1794.0	16992.0
S2 node 2  262654	3470.288136	715.843665	2213.0	29475.0
S2 node 3  262654	3432.029927	569.269205	1947.0	70294.0

S3 node 0  262654	5269.884360	2894.400048	2304.0	53553.0
S3 node 1  262654	6466.290324	2352.077013	0.0	38852.0
S3 node 2  262654	5204.972599	1338.103317	2363.0	27143.0
S3 node 3  262654	4070.797397	751.792519	2458.0	26383.0

Integrated Exposure Maps of Last 12 Months

Sep 2021	Jun 2021	Mar 2021	Dec 2020

The Mean Detrended CTI

We report CTIs with a refined data definition. CTIs were computed for the temperature dependency corrected data. Please see CTI page for detailed explanation. CTI's are computed for Mn K alpha, and defined as slope/intercept x10^4 of row # vs ADU. Data file: here

Imaging CCDs

Spectral CCDs

Backside CCDs

Focal Plane Temperature

Dec 2021 Focal Temperature

The Mean (max) FPT:
-111.25	+/- 3.1 C
Mean Width:
8.08	+/- 49.18 days

Averaged Focal Plane Temperature

We are using 10 period moving averages to show trends of peak temperatures and peak widths. Note, the gaps in the width plot are due to missing/corrupted data.

Focal Plane Temperature, Sun Angle and Altitude

Bad Pixels

The plots below were generated with a new warm pixel finding script. Please see Acis Bad Pixel Page for details.

Front Side CCDs

Back Side CCD (CCD5)

Science Instrument Background Rates

Name	Low (keV)	High(KeV)	Description
SSoft	0.00	0.50	Super soft photons
Soft	0.50	1.00	Soft photons
Med	1.00	3.00	Moderate energy photons
Hard	3.00	5.00	Hard Photons
Harder	5.00	10.00	Very Hard photons
Hardest	10.00		Beyond 10 keV

This page shows scientific instrument background data based on Acis observations. A source region file is generated using get_srcregions and then the input event file is filtered using the regions in that file to remove the sources.

HRC

DOSE of Central 4K Pore-Pairs

Please refer to Maximum Dose Trends for more details.

Dec HRCI Dose in fits

IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_12_2021.fits  16777216	0.026 	0.161 	0.000 	6.000

AUG 1999 - Dec 2021 HRCI Dose in fits

IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_12_2021.fits  16777216	7.647 	6.564 	0.000 	314.000

Dec HRCS Dose in fits

IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCS_12_2021.fits  16777216	0.017 	0.135 	0.000 	4.000

AUG 1999 - Dec 2021 HRCS Dose in fits

IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
HRCS_08_1999_12_2021.fits  16777216	20.773 	36.797 	0.000 	1767.000

Max dose trend plots corrected for events that "pile-up" in the center of the taps due to bad position information.

HRC I: Integrated Exposure Maps of Last 12 Months

Sep 2021	Jun 2021	Mar 2021	Dec 2020

HRC S: Integrated Exposure Maps of Last 12 Months

Sep 2021	Jun 2021	Mar 2021	Dec 2020

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Gratings

Grating Trends/Focus

We plot the width of the zero order streak of ACIS/HETG observations and the width of the zero order image for HRC/LETG observations of point sources. No significant defocusing trend is seen at this time. See Gratings Trends pages.

PCAD

ACA Trending

ACA Trending - May 2020

ACIS
ACIS
HRCI
HRCI

Fid Light Drift

Fid light positions on ACA drift with time. The drift trends of Fid light 2 with ACIS-I and ACIS-S configurations are shown below.

The top panel shows Fid light 2 drift in ACENT I (app. along with -Y axis), and the bottom panel shows that in ACENT J (app. along with Z axis). The unit is a pixel, and one pixel is approximately 0.5 arcsec. The slope listed at the top right corner is the change in a position per year (arcsec/yr). The vertical line on DOM = 1411 (Jun 1, 2003) indicates a transition date of use of IRU-1 to IRU-2.
See also Tom Aldcroft's updated page: https://cxc.cfa.harvard.edu/mta/ASPECT/fid_drift

Fid 2 (ACIS-I)

Fid 2 (ACIS-S)

Fid 8 (HRC-I)

Fid 12 (HRC-S)

Gyro Bias Drift

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Radiation History

Radiation Count Rates of Dec 2021

Sun Spot History (See:NOAA Page)

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Critical Trends

ACIS Temperatures - Daily Maximums
MSID		MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
1pdeaat		-0.006	0.003	(3.04+/-0.07)e2	3.26 +/- 1.92	K	PSMC DEA PS A TEMP

HRMA Computed Averages - Daily Maximums
MSID		MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
obaavg		0.014	9.284e-04	(2.98+/-0.02)e2	-0.90 +/- 0.67	TEMP	OBA/TFTE

EPHIN Temperatures - Daily Maximums
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
teio	0.042	0.010	(3.27+/-0.23)e2	1.18 +/- 3.95	K	EPHIN ELECTRONICS HOUSING TEMP
tephin	0.047	0.004	(3.36+/-0.09)e2	-3.55 +/- 2.75	K	EPHIN SENSOR HOUSING TEMP

S/C Main Temperatures - Daily Maximums
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
tcylfmzm	0.020	0.006	(3.15+/-0.13)e2	1.47 +/- 2.65	K	CNT CYL TEMP:-Z SIDE UNDER LAE-1
tcylfmzp	0.023	0.005	(3.18+/-0.13)e2	2.04 +/- 2.38	K	CNT CYL TEMP:-Z SIDE UNDER LAE-2

S/C Ancillary Temperatures - Daily Maximums
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
tfssbkt1	0.038	0.012	(3.48+/-0.27)e2	-3.66 +/- 4.34	K	FSS BRAC
tfssbkt2	0.036	0.013	(3.43+/-0.30)e2	-0.91 +/- 4.57	K	FSS BRAC
tsctsf1	0.035	0.002	(3.22+/-0.05)e2	-1.13 +/- 1.73	K	SC-TS FITTING -1 TEMP
tsctsf6	0.033	0.002	(3.21+/-0.06)e2	-2.16 +/- 1.81	K	SC-TS FITTING -6 TEMP

MUPS - Daily Maximums
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
pm1thv1t	0.013	0.006	(3.53+/-0.15)e2	-1.61 +/- 2.95	K	MUPS 1 THRUSTER VALVE 01 TEMP
pm2thv1t	0.043	0.018	(3.28+/-0.43)e2	0.87 +/- 8.11	K	MUPS 2 THRUSTER VALVE 01 TEMP
pm1thv2t	0.014	0.006	(3.55+/-0.15)e2	-2.22 +/- 3.10	K	MUPS 1 THRUSTER VALVE 02 TEMP
pm2thv2t	0.025	0.022	(3.18+/-0.51)e2	-13.20 +/- 9.25	K	MUPS 2 THRUSTER VALVE 02 TEMP
pline02t	0.027	0.005	(3.35+/-0.12)e2	-2.84 +/- 2.78	K	PROP LINE TEMP 02
pline03t	0.017	0.006	(3.30+/-0.14)e2	-1.74 +/- 2.62	K	PROP LINE TEMP 03
pline04t	0.033	0.005	(3.18+/-0.11)e2	-0.06 +/- 2.73	K	PROP LINE TEMP 04

Quarterly Trends

HRMA Struts

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4rt584t	0.017	6.246e-04	(3.01+/-0.02)e2	-1.22 +/- 0.44	K	RT 584 - STRUT TEMP
4rt585t	0.017	6.123e-04	(3.01+/-0.02)e2	-0.85 +/- 0.43	K	RT 585 - STRUT TEMP
4rt586t	0.015	5.096e-04	(2.97+/-0.01)e2	-0.50 +/- 0.35	K	RT 586 - STRUT TEMP
4rt587t	0.011	3.665e-04	(2.91+/-0.01)e2	-0.43 +/- 0.25	K	RT 587 - STRUT TEMP
4rt597t	0.025	0.001	(3.09+/-0.03)e2	-2.26 +/- 1.00	K	RT 597 - TFTE TEMP
4rt598t	0.025	0.001	(3.08+/-0.03)e2	-2.16 +/- 0.98	K	RT 598 - TFTE TEMP

OB Forward Bulkhead

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4rt705t	0.015	7.065e-04	(2.92+/-0.02)e2	-0.74 +/- 0.54	K	RT 705 - OB BUL
4rt706t	0.015	7.141e-04	(2.91+/-0.02)e2	-0.75 +/- 0.54	K	RT 706 - OB BUL
4rt707t	0.015	7.173e-04	(2.94+/-0.02)e2	-0.70 +/- 0.55	K	RT 707 - OB BULKHEAD TEMP
4rt708t	0.017	8.064e-04	(2.99+/-0.02)e2	-0.68 +/- 0.62	K	RT 708 - OB BULKHEAD TEMP
4rt709t	0.019	8.703e-04	(3.00+/-0.02)e2	-0.94 +/- 0.67	K	RT 709 - OB BULKHEAD TEMP
4rt710t	0.019	9.353e-04	(3.02+/-0.02)e2	-0.84 +/- 0.72	K	RT 710 - OB BULKHEAD TEMP

HRMA Thermal

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4rt568t	0.019	7.979e-04	(2.99+/-0.02)e2	-1.19 +/- 0.59	K	RT 568 - HRMA TEMP
4rt569t	0.008	2.242e-04	(2.96+/-0.01)e2	-0.20 +/- 0.12	K	RT 569 - HRMA TEMP
4rt570t	0.005	1.183e-04	(2.96+/-0.00)e2	-0.11 +/- 0.05	K	RT 570 - HRMA TEMP
4rt575t	0.021	0.001	(3.04+/-0.03)e2	-1.82 +/- 0.78	K	RT 575 - OB CONE TEMP
4rt576t	0.017	7.826e-04	(2.95+/-0.02)e2	-1.20 +/- 0.57	K	RT 576 - OB CONE TEMP
4rt578t	0.023	0.001	(3.01+/-0.03)e2	-1.45 +/- 0.94	K	RT 578 - OB CONE TEMP

Spacecraft Motions

TSC and FA Cummulative Moter Distance

HETG and LETG Cummulative Insertion Counts

HETG/LETG Insertion/Retraction Angle

Reaction Wheel Rotations

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2000	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1999							Jul	Aug	Sep	Oct	Nov	Dec

- M&TA MONTHLY REPORT -

December 2021

OUTLINE

Configuration/Radiation Overview for December 2021