Observation information
- date-obs: 2021-09-02
- time-obs: 05:30:48.776700000
- date-end: 2021-09-02
- time-end: 07:49:52.079800000
- obs_id: A10_109T01_9000004682
- exposure: 2772.87957536
- sourceid: Cygnus X-1
- observer: tanmoy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_109T01_9000004682_32063cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004682_32063cztM0_level2_quad_clean.evt
|
| Size (bytes) | 667,275,840 | 75,824,640 |
| Size | 636.4 MB
| 72.3 MB
|
| Events in quadrant A | 3,586,063 | 491,243 |
| Events in quadrant B | 5,365,300 | 486,077 |
| Events in quadrant C | 4,323,197 | 452,409 |
| Events in quadrant D | 6,505,379 | 422,590 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14197 | 1 |
| B | 0 | 19934 | 1 |
| C | 0 | 16923 | 1 |
| D | 0 | 23961 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6359 | 87 | 1.368140% |
| B | 6359 | 166 | 2.610473% |
| C | 6359 | 350 | 5.504010% |
| D | 6358 | 398 | 6.259830% |
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 | 7679 | 6359 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7679 | 6359 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7679 | 6359 | 95 | 95 | 1.24% | 1.49% |  |
| D | 7678 | 6358 | 323 | 323 | 4.21% | 5.08% |  |
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 | 13 | 254 | 11425 | 57.61 | 929 | 917 | 182.4 |
| A | 3 | 137 | 8273 | 40.33 | 929 | 917 | 182.4 |
| A | 0 | 226 | 7865 | 38.09 | 929 | 917 | 182.4 |
| B | 6 | 159 | 1635509 | 9650.4 | 912 | 893 | 169.4 |
| B | 10 | 245 | 105542 | 617.82 | 912 | 893 | 169.4 |
| B | 0 | 190 | 31950 | 183.35 | 912 | 893 | 169.4 |
| C | 0 | 10 | 660377 | 3351.96 | 853 | 863 | 196.8 |
| C | 14 | 238 | 163372 | 825.95 | 853 | 863 | 196.8 |
| C | 12 | 249 | 48975 | 244.53 | 853 | 863 | 196.8 |
| D | 8 | 195 | 2224730 | 10893.69 | 863 | 843 | 204.1 |
| D | 12 | 227 | 789789 | 3864.64 | 863 | 843 | 204.1 |
| D | 12 | 218 | 172078 | 838.79 | 863 | 843 | 204.1 |
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 |  |