M&TA February 2015 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.

Feb registered-photon-map in fits

Feb Dose Map

TOTAL

CCD I3

CCD S3

Statistics:
# IMAGE     NPIX     MEAN        RMS        MIN     MAX
ACIS_feb15 6004901   8.186       13.033     0.0     1861


I2 node 0  262654   7.185688     3.188100   0.0   62.0
I2 node 1  262654   7.480994     3.561504   0.0  502.0
I2 node 2  262654   7.360120     3.223152   0.0   63.0
I2 node 3  262654   7.352103     5.576301   0.0 1513.0
 
I3 node 0  262654   7.828798     3.650450   0.0   55.0
I3 node 1  262654   8.078702     7.929561   0.0 1861.0
I3 node 2  262654   7.296066     3.187932   0.0   81.0
I3 node 3  262654   7.315676     3.248323   0.0   91.0

S2 node 0  262654   9.725245     6.843284   0.0   98.0
S2 node 1  262654   10.286026    6.005104   0.0   87.0
S2 node 2  262654   14.007525   10.478198   0.0 1270.0
S2 node 3  262654   16.881576   11.255541   0.0  409.0

S3 node 0  262654   13.379515   13.996296   0.0  351.0
S3 node 1  262654   15.839115   13.504099   0.0  244.0
S3 node 2  262654   18.785769   19.692259   0.0  283.0
S3 node 3  262654   15.906540   25.098970   0.0  343.0

Jul 1999 - Feb 2015 registered-photon-map in fits

Cumulative Dose Map

TOTAL

CCD I3

CCD S3


Statistics:
 IMAGE     NPIX      MEAN        RMS        MIN      MAX
ACIS_total 6004901   1864.979    2445.779   0.0     108038


I2 node 0  262654   1566.331275  299.935269   293.0   9086.0
I2 node 1  262654   1651.172091  413.906427   326.0  38041.0
I2 node 2  262654   1681.196440  351.551578   326.0   9207.0
I2 node 3  262654   1679.114159  422.970066   310.0  28020.0

I3 node 0  262654   1764.342361  420.170842   308.0   6924.0
I3 node 1  262654   1851.806140 1402.453051   313.0  35468.0
I3 node 2  262654   1618.484150  290.527392   299.0   8312.0
I3 node 3  262654   1604.195454  311.086065   284.0  27230.0

S2 node 0  262654   2183.872855  316.843158  1155.0  21225.0
S2 node 1  262654   2323.565671  508.059917  1217.0  12860.0
S2 node 2  262654   2562.227562  485.020076  1540.0  19358.0
S2 node 3  262654   2487.315999  345.879403  1447.0  42378.0

S3 node 0  262654   3881.613940 1797.793241  1595.0  13564.0
S3 node 1  262654   5054.983680 2079.934231     0.0  14039.0
S3 node 2  262654   3860.056392  985.810965  1584.0   9377.0
S3 node 3  262654   2995.327708  452.030222  1713.0  10356.0

Integrated Exposure Maps of Last 12 Months

Nov 2014	Aug 2014	May 2014	Feb 2014

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

Feb 2015 Focal Temperature

The Mean (max) FPT:
-114.45	+/- 2.73 C
Mean Width:
1.15	+/- 0.76 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.

--> Feb HRC-I Dose in fits

  
         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
HRCI_02_2015.fits          16777216   0.005    0.0674      0.0       2.0

AUG 1999 - Feb 2015 HRC-I Dose in fits

        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_02_2015.fits  16777216   4.309    4.896       0.0       292.0

Feb HRC-S dose fits image - no observations

  
No Data

AUG 1999 - FEB 2015 HRC-S Dose in fits

        IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
HRCS_08_1999_02_2015.fits  16777216  15.588     27.267      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

Feb 2015	Aug 2014	May 2014	Feb 2014

HRC S: Integrated Exposure Maps of Last 12 Months

Nov 2014	Aug 2014	May 2014	Feb 2014

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HRMA Focus

Plots below show various characteristics of detected imaging sources. Standard level 2 data products (*src2.fits) are used. Only observations with focus (sim_x) within 0.01 mm of nominal value for given SI configuration are used. Sources are also filtered for strength (SNR > 15).

For individual detectors, please go to MTA SRC2 Monitoring page.

Source Sky Position

PSF vs Time

Source Ellipse Roundness

80% Encircled Energy Radius

Signal-to-Noise Ratio

Rotation

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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 - FEB 2015

Gyro Bias Drift

ACIS-S and HRC Celestial Location Monitoring

Science Instrument Positional Change Monitoring

The following plots are the difference between coordinates obtained from Chandra observations and those obtained from existing catalogs vs time in day of mission.

The following steps are taken to generate these plots.

all observations with grating are selected
even if the observation is not grating one, if it is a known point source, it is added to the list.
observed ra, jan, target ra, jan, nominal ra, jan and a ratio of a target elliptical to psf (psfratio are extracted from src fits files.
the observations with psfratio smaller than 4 are selected
the differences between observed coordinates and targeted coordinates (if not available nominal coordinates) are computed
if the differences are larger than 6 arcsec, the points are dropped

The large dispersion around DOM ~ 2400 (Jan 2005) are all due to none grating Capella observations. Many observations are off-axis observations (e.g., obsid 6558).

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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 Feb 2015

Sun Spot History

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Quarterly Trends

OBA Heaters

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OOBTHR04	294.97	0.90	1.648e+00	-2.071e+01	K	RT 27: HRMA STRUT
OOBTHR08	292.48	3.10	1.391e+01	6.307e+02	K	RT 31: OBA CONE
OOBTHR14	290.41	2.45	1.107e+01	4.831e+02	K	RT 37: OBA CONE
OOBTHR22	291.35	2.95	1.180e+01	5.358e+02	K	RT 44: OBA CONE
OOBTHR40	288.46	1.77	8.437e+00	3.534e+02	K	RT 62: TFTE CONE
OOBTHR59	295.56	1.39	1.778e+00	-2.152e+01	K	RT 152: OBA CONE

HRMA Heaters

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR02	295.30	2.917e-03	-9.632e-03	6.374e-02	K	RT 2: HRMA FORWARD APERTURE PLATE
OHRTHR19	294.58	1.332e-02	2.353e-02	5.781e-02	K	RT 132: HRMA AFT HEATER PLATE
OHRTHR44	295.29	7.815e-03	-3.082e-02	-1.025e-02	K	RT 1: HRMA FORWARD APERTURE PLATE
OHRTHR59	295.30	4.270e-03	-2.700e-03	6.340e-02	K	RT 119: HRMA PRECOLLIMATOR PLATE 10

Envelope Trending

PCAD Temperature

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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Links to Past Monthly Reports

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

1999 Jul Aug Sep Oct Nov Dec

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

Year	Month
2015	Jan
2014	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
2012	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
2010	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
2008	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
2006	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
2004	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
2002	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
2000	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1999							Jul	Aug	Sep	Oct	Nov	Dec

- M&TA MONTHLY REPORT -

February 2015

OUTLINE

Configuration/Radiation Overview for Feb 2015

ACIS

Feb Dose Map

Cumulative Dose Map

Imaging CCDs

Spectral CCDs

Backside CCDs

Feb 2015 Focal Temperature

Averaged Focal Plane Temperature

Focal Plane Temperature, Sun Angle and Altitude

Front Side CCDs

Back Side CCD (CCD5)

HRC

Source Sky Position

PSF vs Time

Source Ellipse Roundness

80% Encircled Energy Radius

Signal-to-Noise Ratio

Rotation