- M&TA MONTHLY REPORT -

May 2014

OUTLINE

Configuration
ACIS

Dose
CTI
Focal Plane Temperature
Bad Pixels
Acis Histogram
Science Instrument Background

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.

May registered-photon-map in fits

May Dose Map

TOTAL

CCD I3

CCD S3

Statistics:
# IMAGE     NPIX        MEAN           RMS              MIN     MAX
ACIS_may14 6004901      11.182         20.484           0.0     4426


I2 node 0  262654   7.324918    3.277373    0.0   37.0
I2 node 1  262654   7.826003    3.681514    0.0  427.0
I2 node 2  262654   8.123681    4.411441    0.0   70.0
I2 node 3  262654   8.305796    4.746612    0.0  936.0

I3 node 0  262654   9.658206    4.434686    0.0  759.0
I3 node 1  262654   9.910959    8.721424    0.0  387.0
I3 node 2  262654   9.037780    3.605604    0.0   73.0
I3 node 3  262654   9.147474    3.726630    0.0  218.0

S2 node 0  262654   9.248066    5.415398    0.0 1600.0
S2 node 1  262654   9.472386    4.169029    0.0   60.0
S2 node 2  262654   9.777064    9.529947    0.0 4426.0
S2 node 3  262654   11.710616   7.793324    0.0  514.0

S3 node 0  262654   35.063687   37.514316   0.0  278.0
S3 node 1  262654   55.488052   44.160957   0.0  281.0
S3 node 2  262654   29.188212   23.608592   1.0  193.0
S3 node 3  262654   13.850533   4.318167    0.0   42.0

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

Cumulative Dose Map

TOTAL

CCD I3

CCD S3


Statistics:
 IMAGE        NPIX      MEAN             RMS            MIN    MAX
ACIS_total   6004901    1794.812         2364.551       0.0   104704


I2 node 0  262654   1498.770017 285.543247   279.0    8990.0
I2 node 1  262654   1580.558945 394.273518   310.0   35525.0
I2 node 2  262654   1610.835509 337.142082   316.0    9115.0
I2 node 3  262654   1608.899772 404.724338   294.0   27925.0

I3 node 0  262654   1684.339476 401.930272   288.0    6640.0
I3 node 1  262654   1768.401342 1341.204401  300.0   34076.0
I3 node 2  262654   1545.408808 275.900782   289.0    7782.0
I3 node 3  262654   1531.279496 295.280653   271.0   26382.0

S2 node 0  262654   2101.810742 303.093077  1094.0   21115.0
S2 node 1  262654   2229.221565 487.197930  1137.0   12355.0
S2 node 2  262654   2460.461190 462.045871  1457.0   18506.0
S2 node 3  262654   2389.207800 327.083530  1387.0   40288.0

S3 node 0  262654   3743.792046 1773.004227 1520.0   13431.0
S3 node 1  262654   4922.660403 2064.493700    0.0   13912.0
S3 node 2  262654   3729.134069 973.849177  1502.0    9186.0
S3 node 3  262654   2881.582256 430.073318  1637.0   10159.0

Integrated Exposure Maps of Last 12 Months

Feb 2014	nov 2013	Jun 2013	May 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

Dec 2013 Focal Temperature

The Mean (max) FPT:
-116.72	+/- 1.27 C
Mean Width:
1.36	+/- 0.97 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.

The following three plots show trends of SIB from year 2000. CCDs shown here are CCD3, CCD5, and CCD7. Fitted lines are linear fit after eliminating extreme outliers. For >10 keV plots, 2 lines are fit. One is with a 13 keV filter, and another without.

CCD 3

CCD 5

CCD 7

ACIS Histogram Mode Trends

We collected data from acis histogram mode data, and created trend plots of peak portions and peak widths against time (DOM). The peaks were estimated by fitting a simple Gaussian on three peaks (Al, Ti, and Mn), and the widths were estimated by a width at the half max from the peak.

All histogram data are taken under TIMED and GRADED_HIST mode, SIM position is at an external calibration source position, the focal temperature is around -119.7 C, and parameter settings in aciselec, acistemp are set to about same for all.

CCD 3, Peak Position

CCD 3, Peak Widths

CCD 3, Count Rates

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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

May HRC-I Dose in fits

  
        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
HRCI_05_2014.fits          16777216   0.004    0.0662      0.0       3.0

AUG 1999 - May 2013 HRC-I Dose in fits

        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_05_2014.fits  16777216   4.258    4.869       0.0       292.0

MAY HRC-S dose fits image - no observations

 
No Data

AUG 1999 - MAY 2014 HRC-S Dose in fits

        IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
HRCS_08_1999_05_2014.fits  16777216  15.425     26.984      0.0      1679.0

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

Feb 2014	Nov 2013	Aug 2013	May 2013

HRC S: Integrated Exposure Maps of Last 12 Months

Feb 2014	Nov 2013	Aug 2013	May 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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Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
TATECDRT	288.99	0.95	4.383e+00	1.545e+01	K	TEC DRIVER RDNT TEMP
TFSSBKT1	338.89	20.73	-3.048e+00	1.543e+02	K	FSS BRACKET-1 TEMP (+Y)
TFSSBKT2	328.92	3.192e+01	4.116e+00	5.737e+02	K	FSS BRACKET-2 TEMP (+Y)
TSCTSF4	268.65	1.20	-5.091e-01	2.276e+02	K	SC-TS FITTING -4 TEMP
TSCTSF6	303.17	3.43	6.680e+00	6.454e+01	K	SC-TS FITTING -6 TEMP

Spacecraft Electronics

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
ELBI	56.69	1.34	3.802e-01	-9.703e+01	AMP	LOAD BUS CURRENT
ELBV	28.36	0.12	-8.381e-01	1.619e+01	V	LOAD BUS VOLTAGE
OHRMAPWR	54.63	2.53	-9.481e+00	-1.597e+02	W	HRMA COMPUTED TOTAL POWER
OOBAPWR	48.34	2.59	-2.396e+00	-2.817e+02	W	OBA COMPUTED TOTAL POWER

Spacecraft Electronics Side A

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
CPA1PWR	0.88	4.31	-3.769e+00	-6.331e+00	DBM	POWER AMP-1 OUTPUT POWER
CPA1V	0.08	0.42	-3.650e-01	-6.039e-01	V	POWER AMP-1 SECONDARY VOLTAGE
CPA2PWR	4.15	9.89	9.670e+00	5.589e+01	DBM	POWER AMP-2 OUTPUT POWER
CPA2V	0.40	0.96	9.360e-01	5.450e+00	V	POWER AMP-2 SECONDARY VOLTAGE
CTXAPWR	36.40	1.057e-02	-1.666e-02	1.079e+02	DBM	TRANSMITTER A OUTPUT POWER

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

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