Observation information
- date-obs: 2021-06-28
- time-obs: 20:24:08.883400000
- date-end: 2021-06-28
- time-end: 22:37:36.879800000
- obs_id: A10_109T01_9000004492
- exposure: 4652.52752775
- 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_9000004492_31095cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31095cztM0_level2_quad_clean.evt
|
| Size (bytes) | 557,196,480 | 107,478,720 |
| Size | 531.4 MB
| 102.5 MB
|
| Events in quadrant A | 3,308,452 | 714,680 |
| Events in quadrant B | 5,293,814 | 712,304 |
| Events in quadrant C | 3,699,103 | 687,646 |
| Events in quadrant D | 4,122,761 | 676,499 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13937 | 2 |
| B | 0 | 20224 | 2 |
| C | 0 | 15022 | 2 |
| D | 0 | 16785 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6658 | 30 | 0.450586% |
| B | 6658 | 136 | 2.042655% |
| C | 6658 | 249 | 3.739862% |
| D | 6658 | 54 | 0.811054% |
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 | 7583 | 6659 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7583 | 6659 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7583 | 6659 | 28 | 28 | 0.37% | 0.42% |  |
| D | 7583 | 6659 | 9 | 9 | 0.12% | 0.14% |  |
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 | 14190 | 77.93 | 857 | 844 | 171.3 |
| A | 3 | 137 | 8530 | 44.88 | 857 | 844 | 171.3 |
| A | 0 | 226 | 7026 | 36.1 | 857 | 844 | 171.3 |
| B | 6 | 159 | 1912379 | 11700.97 | 849 | 827 | 163.4 |
| B | 12 | 111 | 19833 | 116.34 | 849 | 827 | 163.4 |
| B | 0 | 190 | 18487 | 108.1 | 849 | 827 | 163.4 |
| C | 0 | 10 | 230923 | 1181.05 | 831 | 839 | 194.8 |
| C | 14 | 238 | 135017 | 688.75 | 831 | 839 | 194.8 |
| C | 10 | 22 | 69648 | 353.2 | 831 | 839 | 194.8 |
| D | 13 | 174 | 485079 | 2415.54 | 837 | 817 | 200.5 |
| D | 8 | 195 | 427913 | 2130.39 | 837 | 817 | 200.5 |
| D | 2 | 234 | 25652 | 123.88 | 837 | 817 | 200.5 |
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 |  |