Observation information
- date-obs: 2022-05-23
- time-obs: 14:55:28.582300000
- date-end: 2022-05-23
- time-end: 17:22:59.578700000
- obs_id: A11_080T01_9000005146
- exposure: 3543.64639911
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35962cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35962cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,063,108,800 | 80,305,920 |
Size | 1013.9 MB
| 76.6 MB
|
Events in quadrant A | 4,112,326 | 645,214 |
Events in quadrant B | 15,202,634 | 262,255 |
Events in quadrant C | 8,496,481 | 494,993 |
Events in quadrant D | 3,977,239 | 602,975 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16086 | 3 |
B | 0 | 49308 | 2 |
C | 0 | 29222 | 2 |
D | 0 | 15719 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6077 | 99 | 1.629093% |
B | 6077 | 6041 | 99.407602% |
C | 6077 | 2236 | 36.794471% |
D | 6077 | 160 | 2.632878% |
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 | 8851 | 6079 | 56 | 56 | 0.63% | 0.92% | |
B | 8851 | 6078 | 5839 | 5839 | 65.97% | 96.07% | |
C | 8851 | 6078 | 1935 | 1935 | 21.86% | 31.84% | |
D | 8851 | 6079 | 128 | 128 | 1.45% | 2.11% | |
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 | 15 | 169 | 1080935 | 7150.05 | 734 | 721 | 151.1 |
A | 10 | 83 | 181338 | 1195.52 | 734 | 721 | 151.1 |
A | 13 | 254 | 9401 | 57.45 | 734 | 721 | 151.1 |
B | 5 | 31 | 4288757 | 63528.43 | 339 | 331 | 67.5 |
B | 5 | 15 | 4275871 | 63337.54 | 339 | 331 | 67.5 |
B | 5 | 14 | 4254945 | 63027.54 | 339 | 331 | 67.5 |
C | 9 | 187 | 3519846 | 26963.35 | 557 | 563 | 130.5 |
C | 0 | 207 | 2452520 | 18785.92 | 557 | 563 | 130.5 |
C | 15 | 214 | 203928 | 1558.1 | 557 | 563 | 130.5 |
D | 8 | 195 | 340543 | 1954.21 | 707 | 688 | 173.9 |
D | 2 | 249 | 163575 | 936.62 | 707 | 688 | 173.9 |
D | 7 | 223 | 146592 | 838.97 | 707 | 688 | 173.9 |
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 |
|
|
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 |
|
|
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
|
|
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 | |