Observation information
- date-obs: 2021-09-01
- time-obs: 20:52:28.762800000
- date-end: 2021-09-01
- time-end: 23:07:45.075300000
- obs_id: A10_109T01_9000004682
- exposure: 4597.38824506
- 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_32057cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004682_32057cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,097,920 | 107,496,000 |
| Size | 523.7 MB
| 102.5 MB
|
| Events in quadrant A | 3,273,679 | 720,296 |
| Events in quadrant B | 5,402,226 | 708,661 |
| Events in quadrant C | 3,825,671 | 682,283 |
| Events in quadrant D | 3,672,277 | 675,527 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14004 | 2 |
| B | 0 | 20835 | 2 |
| C | 0 | 15670 | 2 |
| D | 0 | 15416 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6727 | 22 | 0.327040% |
| B | 6727 | 134 | 1.991973% |
| C | 6727 | 203 | 3.017690% |
| D | 6727 | 41 | 0.609484% |
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 | 7682 | 6727 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7682 | 6727 | 42 | 42 | 0.55% | 0.62% |  |
| C | 7682 | 6727 | 58 | 58 | 0.76% | 0.86% |  |
| D | 7682 | 6727 | 14 | 14 | 0.18% | 0.21% |  |
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 | 12689 | 69.47 | 843 | 829 | 170.7 |
| A | 13 | 6 | 12587 | 68.88 | 843 | 829 | 170.7 |
| A | 3 | 137 | 8194 | 43.14 | 843 | 829 | 170.7 |
| B | 6 | 159 | 1883664 | 11897.02 | 831 | 810 | 158.3 |
| B | 5 | 172 | 167844 | 1055.42 | 831 | 810 | 158.3 |
| B | 10 | 245 | 30297 | 186.32 | 831 | 810 | 158.3 |
| C | 0 | 10 | 177285 | 932.35 | 809 | 817 | 189.3 |
| C | 3 | 233 | 154271 | 810.76 | 809 | 817 | 189.3 |
| C | 14 | 238 | 131487 | 690.38 | 809 | 817 | 189.3 |
| D | 8 | 195 | 422349 | 2179.17 | 815 | 793 | 193.4 |
| D | 12 | 233 | 125663 | 645.5 | 815 | 793 | 193.4 |
| D | 2 | 234 | 32120 | 161.94 | 815 | 793 | 193.4 |
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 |  |