Observation information
- date-obs: 2022-05-17
- time-obs: 14:13:06.862000000
- date-end: 2022-05-17
- time-end: 16:48:51.857400000
- obs_id: A11_080T01_9000005146
- exposure: 3519.1848871
- 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_35873cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35873cztM0_level2_quad_clean.evt
|
Size (bytes) | 443,376,000 | 82,560,960 |
Size | 422.8 MB
| 78.7 MB
|
Events in quadrant A | 3,383,119 | 541,505 |
Events in quadrant B | 3,055,201 | 535,780 |
Events in quadrant C | 3,252,910 | 531,230 |
Events in quadrant D | 3,365,661 | 509,208 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 39 | 0 |
B | 0 | 39 | 0 |
C | 0 | 39 | 0 |
D | 0 | 39 | 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 | 13643 | 3 |
B | 0 | 12305 | 2 |
C | 0 | 12700 | 2 |
D | 0 | 13604 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5461 | 23 | 0.421168% |
B | 5461 | 64 | 1.171947% |
C | 5461 | 153 | 2.801685% |
D | 5461 | 53 | 0.970518% |
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 | 9345 | 5463 | 5 | 5 | 0.05% | 0.09% | |
B | 9345 | 5463 | 47 | 47 | 0.50% | 0.86% | |
C | 9345 | 5463 | 125 | 125 | 1.34% | 2.29% | |
D | 9345 | 5463 | 39 | 39 | 0.42% | 0.71% | |
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 | 7 | 48 | 345168 | 2547.87 | 668 | 656 | 135.2 |
A | 15 | 169 | 273050 | 2014.51 | 668 | 656 | 135.2 |
A | 10 | 83 | 164830 | 1214.16 | 668 | 656 | 135.2 |
B | 5 | 172 | 288518 | 2275.15 | 659 | 644 | 126.5 |
B | 5 | 255 | 70074 | 548.73 | 659 | 644 | 126.5 |
B | 4 | 232 | 30464 | 235.68 | 659 | 644 | 126.5 |
C | 0 | 10 | 253526 | 1692.54 | 640 | 647 | 149.4 |
C | 15 | 214 | 225434 | 1504.52 | 640 | 647 | 149.4 |
C | 1 | 23 | 202913 | 1353.78 | 640 | 647 | 149.4 |
D | 8 | 195 | 334025 | 2099.57 | 649 | 633 | 158.8 |
D | 7 | 223 | 150828 | 945.87 | 649 | 633 | 158.8 |
D | 13 | 249 | 112945 | 707.3 | 649 | 633 | 158.8 |
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 |
|
|
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 | |