Observation information
- date-obs: 2022-05-21
- time-obs: 05:38:41.686500000
- date-end: 2022-05-21
- time-end: 07:55:57.682000000
- obs_id: A11_080T01_9000005146
- exposure: 2960.14286193
- 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_35927cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35927cztM0_level2_quad_clean.evt
|
Size (bytes) | 478,598,400 | 77,135,040 |
Size | 456.4 MB
| 73.6 MB
|
Events in quadrant A | 3,806,007 | 505,089 |
Events in quadrant B | 3,505,048 | 510,022 |
Events in quadrant C | 3,158,560 | 483,228 |
Events in quadrant D | 3,669,115 | 470,038 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14525 | 3 |
B | 0 | 13512 | 2 |
C | 0 | 12350 | 2 |
D | 0 | 14237 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5249 | 127 | 2.419508% |
B | 5249 | 289 | 5.505811% |
C | 5249 | 139 | 2.648123% |
D | 5249 | 228 | 4.343685% |
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 | 7281 | 5250 | 105 | 105 | 1.44% | 2.00% | |
B | 7281 | 5250 | 202 | 202 | 2.77% | 3.85% | |
C | 7281 | 5250 | 109 | 109 | 1.50% | 2.08% | |
D | 7281 | 5250 | 168 | 168 | 2.31% | 3.20% | |
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 | 922079 | 6811.75 | 677 | 667 | 135.3 |
A | 10 | 83 | 162017 | 1192.82 | 677 | 667 | 135.3 |
A | 9 | 143 | 77565 | 568.49 | 677 | 667 | 135.3 |
B | 5 | 172 | 769966 | 6358.13 | 649 | 636 | 121.0 |
B | 5 | 255 | 103383 | 849.15 | 649 | 636 | 121.0 |
B | 4 | 67 | 38424 | 312.3 | 649 | 636 | 121.0 |
C | 0 | 10 | 396617 | 2708.58 | 634 | 643 | 146.2 |
C | 15 | 214 | 221255 | 1509.05 | 634 | 643 | 146.2 |
C | 0 | 207 | 62912 | 425.94 | 634 | 643 | 146.2 |
D | 13 | 249 | 371874 | 2403.09 | 637 | 621 | 154.5 |
D | 8 | 195 | 269880 | 1742.89 | 637 | 621 | 154.5 |
D | 10 | 118 | 169868 | 1095.52 | 637 | 621 | 154.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
|
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 | |