- M&TA MONTHLY REPORT -

July 2014

OUTLINE

Configuration
ACIS

Dose
CTI
Focal Plane Temperature
Bad Pixels
Corner Pixels
Bias Plots

HRC - Dose
Gratings - Focus
PCAD

ACA Trending
Gyro bias drift

Radiation History
Quarterly Trending
Trending

Quarterly Trends
Envelope Trends

Spacecraft Motions
Past 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

Note: Counts and RMS's of Cumulative maps are lower than the previous months. This is because we excluded extreme outliers.

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

Jul registered-photon-map in fits

Jul Dose Map

TOTAL

CCD I3

CCD S3

Statistics:
# IMAGE     NPIX        MEAN           RMS              MIN     MAX
ACIS_jul14 6004901      7.365         10.129            0.0     387


I2 node 0  262654   7.063169    3.849113    0.0  60.0
I2 node 1  262654   7.313228    3.461977    0.0 133.0
I2 node 2  262654   7.549581    3.415230    0.0  43.0
I2 node 3  262654   7.726792    4.207683    0.0  70.0

I3 node 0  262654   9.990549    4.048693    0.0  40.0
I3 node 1  262654   10.818092   6.731680    0.0 118.0
I3 node 2  262654   8.393377    3.534344    0.0  43.0
I3 node 3  262654   7.549910    3.293415    0.0  75.0

S2 node 0  262654   8.130373    3.872407    0.0 150.0
S2 node 1  262654   8.654855    4.939107    0.0  63.0
S2 node 2  262654   10.031392   8.514377    0.0  94.0
S2 node 3  262654   10.365538   10.697091   0.0 271.0

S3 node 0  262654   13.280970   12.953472   0.0 194.0
S3 node 1  262654   12.979777   9.718509    0.0 141.0
S3 node 2  262654   14.044922   10.806813   0.0 121.0
S3 node 3  262654   12.649728   8.387062    0.0 109.0

Jul 1999 - Jul 2014 registered-photon-map in fits

Cumulative Dose Map

TOTAL

CCD I3

CCD S3


Statistics:
 IMAGE        NPIX      MEAN             RMS            MIN    MAX
ACIS_total   6004901    1811.128         2382.380       0.0    105336


I2 node 0  262654   1511.458059 288.238294   279.0    9001.0
I2 node 1  262654   1593.957114 397.783351   312.0   35831.0
I2 node 2  262654   1624.620994 339.811294   321.0    9133.0
I2 node 3  262654   1622.442060 408.112997   300.0   27941.0

I3 node 0  262654   1700.997313 405.680688   293.0    6690.0
I3 node 1  262654   1785.959508 1351.713092  306.0   34294.0
I3 node 2  262654   1559.996696 278.791352   294.0    7847.0
I3 node 3  262654   1545.108890 298.063521   273.0   26529.0

S2 node 0  262654   2121.589503 304.612157  1107.0   21140.0
S2 node 1  262654   2254.689360 492.730713  1163.0   12478.0
S2 node 2  262654   2487.456675 469.849737  1484.0   18679.0
S2 node 3  262654   2413.398410 333.595927  1396.0   40624.0

S3 node 0  262654   3772.302761 1782.571323 1542.0   13466.0
S3 node 1  262654   4956.663461 2069.910811    0.0   13957.0
S3 node 2  262654   3765.981476 979.889377  1518.0    9230.0
S3 node 3  262654   2913.799770 441.111867  1664.0   10212.0

Integrated Exposure Maps of Last 12 Months

Apr 2014	Jan 2014	Oct 2013	Jul 0213

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

Jul 2014 Focal Temperature

The Mean (max) FPT:
-109.42	+/- 23.12 C
Mean Width:
0.41	+/- 0.27 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.

ACIS Corner Pixels

We plot the average corner pixel centroid slope and mean for ACIS observations. Separate plots are shown for FAINT MODE (3X3) and VFAINT MODE (5X5) observations. Metric is the centroid of a Gaussian fit to the histogram of corner pixel PHA values of detected events. Plus signs are FAINT observations, diamonds are VFAINT observations, and boxes are VFAINT observations with centroids computed using only the corner pixels of a 3X3 event island (referred to as AFAINT). We see a very small upward trend.

CCD: I3

CCD: S3

ACIS Bias Trends

The bias plus overclock level was calculated as follows:

Get acisf*bias0.fits is obtained from a database or /dsops/ap/sdp/cache/*/acis/
Data with timed mode exposure is selected.
Fits files were divided into 4 quads, then an average of bias level for each quad is computed.

CCDS 0, 2 and 8 are the most extreme.

An example of Overclock values as reported in FITS file header:

An example of mean bias minus overclock value:

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HRC

DOSE of Central 4K Pore-Pairs

Please refer to Maximum Dose Trends for more details.

SEP HRC-I dose fits image - no observations

No Data

AUG 1999 - JUL 2013 HRC-I Dose in fits

        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_07_2014.fits  16777216   4.264    4.877       0.0       292.0

Jul HRC-S Dose -->

    
          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX      
HRCS_07_2014.fits          16777216     0.070    0.3627     0.0        19.0

AUG 1999 - JUL 2014 HRC-S Dose in fits

        IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
HRCS_08_1999_07_2014.fits  16777216  15.525     27.207      0.0      1681.0

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

Apr 2014	Jan 2014	Oct 2013	Jul 2013

HRC S: Integrated Exposure Maps of Last 12 Months

Apr 2014	Jan 2014	Oct 2013	Jul 2013

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Gratings

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 Focus pages.

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PCAD

ACA Trending

ACA Trending - Entire Period

ACA Trending - JUL 2014

ACIS-1

ACIS-6

HRC-I-1

HRC-S-1

Gyro Bias Drift

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Radiation History

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4RT568T	292.19	1.28	3.117e+00	-9.402e+01	K	RT 568 - HRMA TEMP
4RT569T	294.47	0.12	2.945e-01	-7.591e+00	K	RT 569 - HRMA TEMP
4RT570T	294.38	1.065e-02	7.010e-03	4.225e-02	K	RT 570 - HRMA TEMP
4RT575T	295.03	1.63	3.696e+00	-1.072e+02	K	RT 575 - OB CONE TEMP
4RT577T	295.98	3.08	7.904e+00	-2.226e+02	K	RT 577 - OB CONE TEMP
4RT578T	293.44	2.75	7.944e+00	-2.113e+02	K	RT 578 - OB CONE TEMP

HRMA Struts

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4RT584T	294.37	0.98	2.178e+00	-5.167e+01	K	RT 584 - STRUT TEMP
4RT585T	294.46	0.98	2.538e+00	-6.199e+01	K	RT 585 - STRUT TEMP
4RT586T	291.68	0.85	2.312e+00	-5.877e+01	K	RT 586 - STRUT TEMP
4RT597T	297.04	1.90	2.906e+00	-9.660e+01	K	RT 597 - TFTE TEMP
4RT598T	296.51	1.91	3.649e+00	-1.175e+02	K	RT 598 - TFTE TEMP

Spacecraft Motions

Reaction Wheel Rotations

Note: From Feb 2010, the computation of reaction wheel rotations are slightly modified.

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Links to Past Monthly Reports

Year	Month
1999							Jul	Aug	Sep	Oct	Nov	Dec
2000	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2001	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2003	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2004	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2005	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2006	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2007	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2010	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2011	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2012	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2013	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2014	Jan	Feb	Mar	Apr	May	Jun

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If you have any questions about this page, please contact swolk@head.cfa.harvard.edu.