Observation information
- date-obs: 2022-05-18
- time-obs: 13:08:41.814100000
- date-end: 2022-05-18
- time-end: 15:28:07.809200000
- obs_id: A11_080T01_9000005146
- exposure: 2739.68334292
- 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_35887cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35887cztM0_level2_quad_clean.evt
|
Size (bytes) | 568,506,240 | 67,207,680 |
Size | 542.2 MB
| 64.1 MB
|
Events in quadrant A | 2,677,553 | 444,010 |
Events in quadrant B | 6,718,460 | 388,290 |
Events in quadrant C | 3,023,543 | 429,664 |
Events in quadrant D | 4,447,677 | 410,452 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 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 | 10864 | 3 |
B | 0 | 23333 | 2 |
C | 0 | 11850 | 2 |
D | 0 | 16818 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5167 | 10 | 0.193536% |
B | 5167 | 1717 | 33.230114% |
C | 5167 | 72 | 1.393458% |
D | 5167 | 292 | 5.651248% |
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 | 7141 | 5168 | 1 | 1 | 0.01% | 0.02% | |
B | 7141 | 5168 | 1570 | 1570 | 21.99% | 30.38% | |
C | 7141 | 5168 | 60 | 60 | 0.84% | 1.16% | |
D | 7141 | 5168 | 255 | 255 | 3.57% | 4.93% | |
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 | 163508 | 1256.77 | 641 | 631 | 129.6 |
A | 15 | 233 | 14393 | 106.19 | 641 | 631 | 129.6 |
A | 13 | 6 | 12528 | 91.8 | 641 | 631 | 129.6 |
B | 5 | 63 | 3783178 | 37310.41 | 531 | 520 | 101.4 |
B | 5 | 172 | 639598 | 6303.57 | 531 | 520 | 101.4 |
B | 5 | 255 | 167359 | 1645.62 | 531 | 520 | 101.4 |
C | 15 | 214 | 216100 | 1513.85 | 615 | 622 | 142.3 |
C | 0 | 10 | 210369 | 1473.59 | 615 | 622 | 142.3 |
C | 1 | 23 | 103886 | 725.49 | 615 | 622 | 142.3 |
D | 12 | 227 | 715160 | 4788.07 | 608 | 593 | 149.2 |
D | 8 | 195 | 387593 | 2593.15 | 608 | 593 | 149.2 |
D | 13 | 249 | 346771 | 2319.62 | 608 | 593 | 149.2 |
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 | |