Observation information
- date-obs: 2021-06-28
- time-obs: 14:55:50.891100000
- date-end: 2021-06-28
- time-end: 17:23:17.887400000
- obs_id: A10_109T01_9000004492
- exposure: 4456.19846302
- 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_31092cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31092cztM0_level2_quad_clean.evt
|
| Size (bytes) | 573,603,840 | 112,472,640 |
| Size | 547.0 MB
| 107.3 MB
|
| Events in quadrant A | 3,557,499 | 756,906 |
| Events in quadrant B | 5,257,654 | 757,542 |
| Events in quadrant C | 4,066,554 | 739,707 |
| Events in quadrant D | 4,070,021 | 719,170 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14726 | 2 |
| B | 0 | 19396 | 2 |
| C | 0 | 16316 | 2 |
| D | 0 | 16446 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6207 | 122 | 1.965523% |
| B | 6208 | 222 | 3.576031% |
| C | 6208 | 370 | 5.960052% |
| D | 6208 | 140 | 2.255155% |
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 | 8847 | 6209 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8848 | 6210 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8848 | 6210 | 67 | 67 | 0.76% | 1.08% |  |
| D | 8848 | 6210 | 25 | 25 | 0.28% | 0.40% |  |
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 | 11808 | 60.21 | 923 | 910 | 181.0 |
| A | 3 | 137 | 8460 | 41.72 | 923 | 910 | 181.0 |
| A | 0 | 226 | 7694 | 37.48 | 923 | 910 | 181.0 |
| B | 6 | 159 | 1652333 | 9802.52 | 906 | 886 | 168.5 |
| B | 0 | 183 | 27794 | 159.72 | 906 | 886 | 168.5 |
| B | 12 | 111 | 19799 | 112.26 | 906 | 886 | 168.5 |
| C | 0 | 10 | 364073 | 1774.57 | 888 | 900 | 204.7 |
| C | 14 | 238 | 144550 | 701.92 | 888 | 900 | 204.7 |
| C | 10 | 22 | 68977 | 332.64 | 888 | 900 | 204.7 |
| D | 13 | 174 | 301330 | 1422.81 | 906 | 887 | 211.2 |
| D | 8 | 195 | 208888 | 985.03 | 906 | 887 | 211.2 |
| D | 1 | 52 | 96164 | 451.2 | 906 | 887 | 211.2 |
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 |
 |
 |
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 |  |