Observation information
- date-obs: 2022-05-23
- time-obs: 01:18:41.608800000
- date-end: 2022-05-23
- time-end: 03:29:08.603300000
- obs_id: A11_080T01_9000005146
- exposure: 3143.25866559
- 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_35954cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35954cztM0_level2_quad_clean.evt
|
Size (bytes) | 799,197,120 | 74,687,040 |
Size | 762.2 MB
| 71.2 MB
|
Events in quadrant A | 3,642,415 | 514,476 |
Events in quadrant B | 13,421,676 | 338,725 |
Events in quadrant C | 3,359,729 | 521,375 |
Events in quadrant D | 3,403,500 | 496,140 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 23 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14248 | 3 |
B | 0 | 43562 | 2 |
C | 0 | 13398 | 2 |
D | 0 | 13754 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5557 | 354 | 6.370344% |
B | 5557 | 5421 | 97.552636% |
C | 5557 | 171 | 3.077200% |
D | 5557 | 105 | 1.889509% |
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 | 7351 | 5558 | 277 | 277 | 3.77% | 4.98% | |
B | 7351 | 5558 | 5159 | 5159 | 70.18% | 92.82% | |
C | 7351 | 5558 | 42 | 42 | 0.57% | 0.76% | |
D | 7351 | 5558 | 96 | 96 | 1.31% | 1.73% | |
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 | 958221 | 7294.5 | 646 | 636 | 131.3 |
A | 10 | 83 | 162785 | 1235.19 | 646 | 636 | 131.3 |
A | 13 | 6 | 10375 | 74.19 | 646 | 636 | 131.3 |
B | 5 | 14 | 3748272 | 48990.98 | 393 | 385 | 76.5 |
B | 5 | 31 | 3718824 | 48606.04 | 393 | 385 | 76.5 |
B | 5 | 15 | 3711240 | 48506.91 | 393 | 385 | 76.5 |
C | 9 | 187 | 583357 | 3934.16 | 634 | 640 | 148.1 |
C | 15 | 214 | 233238 | 1570.36 | 634 | 640 | 148.1 |
C | 0 | 10 | 52530 | 350.33 | 634 | 640 | 148.1 |
D | 7 | 223 | 416110 | 2657.43 | 632 | 617 | 156.4 |
D | 13 | 249 | 158254 | 1008.22 | 632 | 617 | 156.4 |
D | 8 | 195 | 135660 | 863.71 | 632 | 617 | 156.4 |
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 |
|
|
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
|
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 | |