M&TA October 2012 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.

Sep registered-photon-map in fits

Sep Dose Map

TOTAL

CCD I3

CCD S3

Statistics:
# IMAGE     NPIX        MEAN           RMS              MIN     MAX
ACIS_oct12 6004901       7.087         10.614           0.0     3172


I2 node 0  262654   5.503841    2.745299    0.0  26.0
I2 node 1  262654   5.764513    3.069267    0.0 177.0
I2 node 2  262654   5.781319    2.817320    0.0  39.0
I2 node 3  262654   6.082613    3.332630    0.0 220.0

I3 node 0  262654   6.667004    4.772508    0.0 101.0
I3 node 1  262654   6.646149    6.011661    0.0 331.0
I3 node 2  262654   6.012385    2.984891    0.0  54.0
I3 node 3  262654   5.847321    2.845884    0.0 130.0

S2 node 0  262654   8.880308    3.630683    0.0 482.0
S2 node 1  262654   9.181182    4.156384    0.0  70.0
S2 node 2  262654   9.444550    4.930201    0.0 1547.0
S2 node 3  262654   9.315085    3.657688    0.0 478.0

S3 node 0  262654   18.012852   19.499236   0.0 156.0
S3 node 1  262654   13.130805   6.030065    0.0  90.0
S3 node 2  262654   11.967004   3.691615    0.0  57.0
S3 node 3  262654   10.762586   3.449656    0.0  35.0

Jul 1999 - Oct 2012 registered-photon-map in fits

Cumulative Dose Map

TOTAL

CCD I3

CCD S3


Statistics:
 IMAGE        NPIX      MEAN             RMS            MIN    MAX
ACIS_total   6004901       1662.774         2198.599           0.0    98151


I2 node 0  262654   1380.849854 271.020140  0.0 7121.0
I2 node 1  262654   1452.404080 362.293096  0.0 31582.0
I2 node 2  262654   1482.830097 319.556162  0.0 6438.0
I2 node 3  262654   1478.099284 374.376424  0.0 6912.0

I3 node 0  262654   1553.091467 381.481025  0.0 6134.0
I3 node 1  262654   1630.832798 1233.807075 0.0 31569.0
I3 node 2  262654   1419.830458 262.066943  0.0 6864.0
I3 node 3  262654   1404.857407 278.685699  0.0 24773.0

S2 node 0  262654   2010.138342 305.783797  1048.0  28542.0
S2 node 1  262654   2146.425552 470.903524  1089.0  11802.0
S2 node 2  262654   2379.755821 470.072341  1429.0  41917.0
S2 node 3  262654   2313.416257 360.588601  1369.0  37593.0

S3 node 0  262654   3467.166854 1664.987452 1446.0  12640.0
S3 node 1  262654   4573.280952 1884.954516    0.0  12923.0
S3 node 2  262654   3526.794317 903.681669  1375.0  8880.0
S3 node 3  262654   2757.279455 445.604713  1565.0  9062.0

Integrated Exposure Maps of Last 12 Months

Jul 2012	Apr 2012	Jan 2012	Oct 2011

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

Focal Plane Temperature

Oct 2012 Focal Temperature

The Mean (max) FPT:
-109.35	+/- 4.24 C
Mean Width:
0.27	+/- 0.08 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.

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HRC

DOSE of Central 4K Pore-Pairs

Please refer to Maximum Dose Trends for more details.

OCT HRC-I Dose in fits

  
        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
HRCI_10_2012.fits          16777216   0.001    0.0351      0.0       2.0

AUG 1999 - OCT 2012 HRC-I Dose in fits

        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_10_2012.fits  16777216   3.905    4.745       0.0       292.0

SEP HRC-S dose fits image - no observations

OCT HRC-S Dose

         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
HRCS_10_2012.fits          16777216   0.003    0.054       0.0        2.0

AUG 1999 - OCT 2012 HRC-S Dose in fits

        IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
HRCS_08_1999_10_2012.fits  16777216  14.207      23.898      0.0      1634.0

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

Jul 2012	Apr 2012	Jan 2012	Oct 2011

HRC S: Integrated Exposure Maps of Last 12 Months

Jul 2012	Apr 2012	Jan 2012	Oct 2011

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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.

Gratings Resolving Power

We plot E/dE vs. E for fits to detected lines with fwhm_error/fwhm less than 0.15 for the plus and minus arms of HEG, MEG, and LEG. Also shown are conservative (dotted line) and optimistic (dashed line) pre-launch resolving power expectations.

We have selected only calibration observations of Capella, HR1099, and Sigma Gem. See MIT technotes for a parallel analysis.

Plot symbol indicates dispersion arm:	Color indicates observation date:
Plus side = plus (+) Minus side = cross (x)	1999-2001 green A002-2004 blue 2005-2006 yellow 2007-2009 orange

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PCAD

ACA Trending

ACA Trending - Entire Period

ACA Trending - OCT 2012

Gyro Bias Drift

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Radiation History

Radiation Zone Timing

Plotted below are radiation zone timing plots based on the following definitions of radiation zone:

RADZONE - Ephin levels (in any of the E1300,P4GM,P41GM channels) are more than 1/3 of RADMON safing thresholds.
RADMON - Radmon is disabled for radiation zone (as commanded based on OFLS model, for comparison with actual radiation levels).
PERIGEE - Time of closest earth approach (for comparison)

Radiation Count Rates of Oct 2012

Sun Spot History

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SIM

SIM Shift and Twist

SIM Shift and Twist Trend The following plots show trends of SIM shifts (dy and dz) and twist (dtheta). All quantities are directly taken from pcaf*_asol1.fits files. The units are mm for dy and dz, and degree for dtheta. We fit three lines separated before and after (Days of Mission)= 1400 (May 21, 2003), and 2700 (Dec 11, 2006). The unit of slopes are mm per day or degree per day.

The sudden shift around DOM = 1400 and 2700 are due to fid light drift (see a memo by Aldcroft fiducial light drift). On the dtheta plot, two tracks are clearly observed. The track around 0.01 is due to HRC-I, and all others are clustered around -0.002. For more detail, please see SIM Shift and Twist Trend page

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Quarterly Trends

OBA Heaterse

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OOBTHR08	291.40	1.19	1.793e-01	-8.136e+01	K	RT 31: OBA CONE
OOBTHR09	290.70	1.14	4.079e-02	-8.366e+01	K	RT 32: OBA CONE
OOBTHR18	290.57	1.14	4.853e-03	-8.023e+01	K	RT 40: OBA CONE
OOBTHR19	292.16	1.89	-2.037e+00	-1.446e+02	K	RT 41: OBA CONE

HRMA Heaterse

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR22	295.26	1.225e-03	6.761e-03	3.761e-02	K	RT 6: HRMA FOWARD APERTURE PLATE
OHRTHR45	295.25	8.762e-04	-4.249e-03	2.404e-02	K	RT 4: HRMA FORWARD APERTURE PLATE
OHRTHR46	295.27	1.399e-03	9.958e-03	5.530e-02	K	RT 7: HRMA FORWARD APERTURE PLATE
OHRTHR47	295.29	4.826e-03	-3.831e-02	-1.068e-01	K	RT 10: HRMA PRECOLLIMATOR PLATE 10

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

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

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October 2012

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