Observation information
- date-obs: 2022-05-23
- time-obs: 04:56:18.600200000
- date-end: 2022-05-23
- time-end: 06:57:40.595800000
- obs_id: A11_080T01_9000005146
- exposure: 2805.07927375
- 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_35956cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35956cztM0_level2_quad_clean.evt
|
Size (bytes) | 782,409,600 | 73,768,320 |
Size | 746.2 MB
| 70.4 MB
|
Events in quadrant A | 3,949,859 | 523,877 |
Events in quadrant B | 12,038,294 | 339,287 |
Events in quadrant C | 4,231,071 | 489,899 |
Events in quadrant D | 3,121,126 | 511,317 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 20 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15015 | 3 |
B | 0 | 39207 | 2 |
C | 0 | 15768 | 10 |
D | 0 | 12467 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5248 | 406 | 7.736280% |
B | 5248 | 4693 | 89.424543% |
C | 5247 | 566 | 10.787116% |
D | 5248 | 54 | 1.028963% |
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 | 7282 | 5249 | 358 | 358 | 4.92% | 6.82% | |
B | 7282 | 5249 | 4404 | 4404 | 60.48% | 83.90% | |
C | 7282 | 5249 | 462 | 462 | 6.34% | 8.80% | |
D | 7282 | 5249 | 43 | 43 | 0.59% | 0.82% | |
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 | 1208714 | 8943.51 | 668 | 659 | 135.1 |
A | 10 | 83 | 147124 | 1084.31 | 668 | 659 | 135.1 |
A | 8 | 144 | 9994 | 69.11 | 668 | 659 | 135.1 |
B | 5 | 14 | 2902360 | 37954.96 | 400 | 391 | 76.5 |
B | 5 | 31 | 2876719 | 37619.6 | 400 | 391 | 76.5 |
B | 5 | 15 | 2866500 | 37485.95 | 400 | 391 | 76.5 |
C | 9 | 187 | 1379975 | 9666.8 | 617 | 623 | 142.7 |
C | 15 | 214 | 211813 | 1480.07 | 617 | 623 | 142.7 |
C | 0 | 10 | 93462 | 650.64 | 617 | 623 | 142.7 |
D | 8 | 195 | 174071 | 1091.83 | 649 | 633 | 158.9 |
D | 2 | 250 | 156930 | 983.93 | 649 | 633 | 158.9 |
D | 7 | 223 | 87646 | 547.77 | 649 | 633 | 158.9 |
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 | |