Observation information
- date-obs: 2024-09-16
- time-obs: 12:13:18.956500000
- date-end: 2024-09-16
- time-end: 14:10:16.953000000
- obs_id: A13_037T01_9000006432
- exposure: 6799.94034827
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006432_48510cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006432_48510cztM0_level2_quad_clean.evt
|
Size (bytes) | 471,481,920 | 109,172,160 |
Size | 449.6 MB
| 104.1 MB
|
Events in quadrant A | 7,069,641 | 719,307 |
Events in quadrant B | 3,385,088 | 741,015 |
Events in quadrant C | 2,927,881 | 713,065 |
Events in quadrant D | 3,525,382 | 643,389 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26849 | 0 |
B | 0 | 15307 | 0 |
C | 0 | 14233 | 0 |
D | 0 | 15911 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7018 | 101 | 1.439156% |
B | 7019 | 140 | 1.994586% |
C | 7019 | 12 | 0.170965% |
D | 7019 | 65 | 0.926058% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7018 | 7018 | 26 | 26 | 0.37% | 0.37% | |
B | 7019 | 7019 | 38 | 38 | 0.54% | 0.54% | |
C | 7019 | 7019 | 6 | 6 | 0.09% | 0.09% | |
D | 7019 | 7019 | 67 | 67 | 0.95% | 0.95% | |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 3859594 | 24372.93 | 750 | 734 | 158.3 |
A | 12 | 189 | 245476 | 1545.81 | 750 | 734 | 158.3 |
A | 7 | 3 | 51375 | 319.85 | 750 | 734 | 158.3 |
B | 12 | 16 | 300997 | 2009.7 | 747 | 722 | 149.4 |
B | 5 | 255 | 77675 | 515.04 | 747 | 722 | 149.4 |
B | 0 | 186 | 36942 | 242.42 | 747 | 722 | 149.4 |
C | 14 | 254 | 30341 | 168.85 | 741 | 743 | 175.3 |
C | 13 | 61 | 4975 | 24.14 | 741 | 743 | 175.3 |
C | 3 | 233 | 4770 | 22.97 | 741 | 743 | 175.3 |
D | 2 | 165 | 540608 | 2922.56 | 736 | 712 | 184.7 |
D | 2 | 249 | 80955 | 434.37 | 736 | 712 | 184.7 |
D | 2 | 234 | 37601 | 199.69 | 736 | 712 | 184.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
|
|
Quadrant-wise count rates
Data is divided into 100 sec bins |
|
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Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
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Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
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Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
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|
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
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Housekeeping plots
Parameter |
Plot |
CZT HV Monitor | |
D_VDD | |
Temperature 1 | |
Veto HV Monitor | |
Veto LLD | |
Alpha Counter | |
_CPM_Rate | |
CZT Counter | |
+2.5 Volts monitor | |
+5 Volts monitor | |
_ROLL_ROT | |
_Roll_DEC | |
_Roll_RA | |
Veto Counter | |