Observation information
- date-obs: 2022-05-16
- time-obs: 05:20:21.937400000
- date-end: 2022-05-16
- time-end: 07:44:58.928100000
- obs_id: A11_080T01_9000005146
- exposure: 2965.4001893
- 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_35853cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35853cztM0_level2_quad_clean.evt
|
Size (bytes) | 369,299,520 | 73,379,520 |
Size | 352.2 MB
| 70.0 MB
|
Events in quadrant A | 2,604,972 | 487,032 |
Events in quadrant B | 2,666,518 | 483,436 |
Events in quadrant C | 2,729,807 | 470,213 |
Events in quadrant D | 2,857,315 | 445,925 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 31 | 0 |
C | 0 | 32 | 1 |
D | 0 | 34 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 4 |
B | 0 | 105 | 5 |
C | 0 | 107 | 3 |
D | 0 | 106 | 3 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11460 | 942 |
B | 0 | 12150 | 1356 |
C | 0 | 11795 | 966 |
D | 0 | 13092 | 1680 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4807 | 7 | 0.145621% |
B | 4737 | 32 | 0.675533% |
C | 4794 | 87 | 1.814768% |
D | 4705 | 75 | 1.594049% |
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 | 7162 | 5122 | 1 | 1 | 0.01% | 0.02% | |
B | 7162 | 5052 | 21 | 21 | 0.29% | 0.42% | |
C | 7162 | 5109 | 81 | 81 | 1.13% | 1.59% | |
D | 7162 | 5052 | 70 | 70 | 0.98% | 1.39% | |
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 | 152106 | 1246.21 | 604 | 595 | 121.6 |
A | 15 | 169 | 91926 | 751.21 | 604 | 595 | 121.6 |
A | 13 | 6 | 17555 | 139.5 | 604 | 595 | 121.6 |
B | 5 | 172 | 190772 | 1715.51 | 583 | 571 | 110.9 |
B | 0 | 213 | 87377 | 782.94 | 583 | 571 | 110.9 |
B | 15 | 85 | 27921 | 246.68 | 583 | 571 | 110.9 |
C | 0 | 10 | 216337 | 1639.63 | 566 | 573 | 131.6 |
C | 15 | 214 | 204202 | 1547.42 | 566 | 573 | 131.6 |
C | 9 | 69 | 80019 | 603.73 | 566 | 573 | 131.6 |
D | 7 | 223 | 184980 | 1349.7 | 563 | 551 | 136.6 |
D | 13 | 200 | 99092 | 721.15 | 563 | 551 | 136.6 |
D | 8 | 195 | 88749 | 645.46 | 563 | 551 | 136.6 |
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 | |