Observation information
- date-obs: 2022-05-22
- time-obs: 04:13:41.644600000
- date-end: 2022-05-22
- time-end: 06:33:41.640100000
- obs_id: A11_080T01_9000005146
- exposure: 3149.20994678
- 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_35941cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35941cztM0_level2_quad_clean.evt
|
Size (bytes) | 432,702,720 | 80,547,840 |
Size | 412.7 MB
| 76.8 MB
|
Events in quadrant A | 2,841,637 | 533,202 |
Events in quadrant B | 3,496,294 | 532,837 |
Events in quadrant C | 3,017,806 | 514,228 |
Events in quadrant D | 3,393,508 | 492,549 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 105 | 0 |
D | 0 | 105 | 1 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11570 | 113 |
B | 0 | 13748 | 79 |
C | 0 | 12103 | 131 |
D | 0 | 13497 | 108 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5231 | 12 | 0.229402% |
B | 5243 | 196 | 3.738318% |
C | 5232 | 80 | 1.529052% |
D | 5239 | 117 | 2.233251% |
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 | 7264 | 5264 | 7 | 7 | 0.10% | 0.13% | |
B | 7262 | 5274 | 122 | 122 | 1.68% | 2.31% | |
C | 7264 | 5268 | 48 | 48 | 0.66% | 0.91% | |
D | 7263 | 5271 | 88 | 88 | 1.21% | 1.67% | |
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 | 160735 | 1202.94 | 664 | 656 | 133.1 |
A | 15 | 169 | 55115 | 409.24 | 664 | 656 | 133.1 |
A | 9 | 143 | 45250 | 335.11 | 664 | 656 | 133.1 |
B | 5 | 172 | 440780 | 3545.94 | 647 | 633 | 124.1 |
B | 4 | 171 | 258770 | 2079.62 | 647 | 633 | 124.1 |
B | 0 | 213 | 150756 | 1209.43 | 647 | 633 | 124.1 |
C | 15 | 214 | 219716 | 1509.76 | 627 | 634 | 145.1 |
C | 0 | 10 | 186319 | 1279.61 | 627 | 634 | 145.1 |
C | 0 | 207 | 153662 | 1054.56 | 627 | 634 | 145.1 |
D | 8 | 195 | 411664 | 2716.17 | 627 | 611 | 151.3 |
D | 13 | 249 | 210158 | 1384.65 | 627 | 611 | 151.3 |
D | 7 | 223 | 141815 | 933.05 | 627 | 611 | 151.3 |
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 | |