Observation information
- date-obs: 2021-06-30
- time-obs: 20:56:03.821400000
- date-end: 2021-06-30
- time-end: 23:24:37.819800000
- obs_id: A10_109T01_9000004492
- exposure: 4974.84486026
- 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_31125cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31125cztM0_level2_quad_clean.evt
|
| Size (bytes) | 596,969,280 | 112,403,520 |
| Size | 569.3 MB
| 107.2 MB
|
| Events in quadrant A | 3,705,719 | 739,507 |
| Events in quadrant B | 5,904,807 | 730,781 |
| Events in quadrant C | 3,973,990 | 710,980 |
| Events in quadrant D | 3,988,758 | 703,152 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15810 | 3 |
| B | 0 | 22865 | 3 |
| C | 0 | 16435 | 3 |
| D | 0 | 16819 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7469 | 53 | 0.709600% |
| B | 7469 | 192 | 2.570625% |
| C | 7469 | 215 | 2.878565% |
| D | 7470 | 54 | 0.722892% |
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 | 8914 | 7472 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8914 | 7472 | 2 | 2 | 0.02% | 0.03% |  |
| C | 8914 | 7472 | 13 | 13 | 0.15% | 0.17% |  |
| D | 8915 | 7473 | 8 | 8 | 0.09% | 0.11% |  |
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 | 11403 | 54.06 | 960 | 943 | 193.5 |
| A | 3 | 137 | 9910 | 46.34 | 960 | 943 | 193.5 |
| A | 0 | 226 | 7779 | 35.33 | 960 | 943 | 193.5 |
| B | 6 | 159 | 2072665 | 11319.1 | 946 | 924 | 183.0 |
| B | 0 | 183 | 38100 | 203.11 | 946 | 924 | 183.0 |
| B | 4 | 80 | 30451 | 161.32 | 946 | 924 | 183.0 |
| C | 0 | 10 | 159291 | 728.06 | 927 | 936 | 217.5 |
| C | 14 | 238 | 149233 | 681.81 | 927 | 936 | 217.5 |
| C | 10 | 22 | 19378 | 84.79 | 927 | 936 | 217.5 |
| D | 8 | 195 | 386800 | 1746.47 | 935 | 912 | 221.0 |
| D | 2 | 250 | 59059 | 263.16 | 935 | 912 | 221.0 |
| D | 2 | 234 | 28232 | 123.65 | 935 | 912 | 221.0 |
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 |  |