Observation information
- date-obs: 2022-05-18
- time-obs: 01:08:41.843600000
- date-end: 2022-05-18
- time-end: 03:18:19.838300000
- obs_id: A11_080T01_9000005146
- exposure: 3569.0706033
- 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_35879cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35879cztM0_level2_quad_clean.evt
|
Size (bytes) | 475,560,000 | 79,755,840 |
Size | 453.5 MB
| 76.1 MB
|
Events in quadrant A | 3,107,816 | 514,441 |
Events in quadrant B | 4,233,484 | 511,404 |
Events in quadrant C | 2,987,625 | 507,713 |
Events in quadrant D | 3,689,455 | 485,943 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 22 | 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 | 12931 | 3 |
B | 0 | 16378 | 2 |
C | 0 | 12345 | 2 |
D | 0 | 14680 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5662 | 8 | 0.141293% |
B | 5662 | 530 | 9.360650% |
C | 5662 | 70 | 1.236312% |
D | 5662 | 84 | 1.483575% |
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 | 7244 | 5663 | 1 | 1 | 0.01% | 0.02% | |
B | 7244 | 5663 | 371 | 371 | 5.12% | 6.55% | |
C | 7244 | 5663 | 47 | 47 | 0.65% | 0.83% | |
D | 7244 | 5663 | 57 | 57 | 0.79% | 1.01% | |
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 | 190608 | 1410.07 | 663 | 652 | 134.7 |
A | 10 | 83 | 172009 | 1272.01 | 663 | 652 | 134.7 |
A | 7 | 48 | 167876 | 1241.33 | 663 | 652 | 134.7 |
B | 5 | 63 | 1068998 | 8640.35 | 639 | 622 | 123.6 |
B | 5 | 172 | 423210 | 3417.63 | 639 | 622 | 123.6 |
B | 4 | 232 | 80378 | 645.02 | 639 | 622 | 123.6 |
C | 15 | 214 | 237381 | 1586.75 | 638 | 645 | 149.2 |
C | 0 | 10 | 194918 | 1302.14 | 638 | 645 | 149.2 |
C | 1 | 23 | 61142 | 405.49 | 638 | 645 | 149.2 |
D | 8 | 195 | 741916 | 4737.87 | 635 | 619 | 156.5 |
D | 7 | 223 | 188358 | 1199.9 | 635 | 619 | 156.5 |
D | 13 | 249 | 166349 | 1059.24 | 635 | 619 | 156.5 |
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 | |