Observation information
- date-obs: 2021-08-19
- time-obs: 19:34:53.928700000
- date-end: 2021-08-19
- time-end: 21:37:00.930500000
- obs_id: A10_109T01_9000004646
- exposure: 4833.64435287
- 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_9000004646_31864cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004646_31864cztM0_level2_quad_clean.evt
|
| Size (bytes) | 594,288,000 | 110,174,400 |
| Size | 566.8 MB
| 105.1 MB
|
| Events in quadrant A | 3,499,496 | 739,893 |
| Events in quadrant B | 5,516,511 | 725,013 |
| Events in quadrant C | 4,638,060 | 688,609 |
| Events in quadrant D | 3,865,979 | 691,472 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14862 | 1 |
| B | 0 | 21701 | 1 |
| C | 0 | 18669 | 1 |
| D | 0 | 16060 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7062 | 67 | 0.948740% |
| B | 7063 | 187 | 2.647600% |
| C | 7063 | 302 | 4.275803% |
| D | 7063 | 125 | 1.769786% |
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 | 7327 | 7064 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7328 | 7065 | 11 | 11 | 0.15% | 0.16% |  |
| C | 7328 | 7065 | 68 | 68 | 0.93% | 0.96% |  |
| D | 7328 | 7065 | 76 | 76 | 1.04% | 1.08% |  |
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 | 11471 | 57.9 | 905 | 887 | 182.8 |
| A | 13 | 6 | 10894 | 54.74 | 905 | 887 | 182.8 |
| A | 3 | 137 | 9064 | 44.73 | 905 | 887 | 182.8 |
| B | 6 | 159 | 1856740 | 10840.89 | 888 | 868 | 171.2 |
| B | 0 | 229 | 91026 | 526.65 | 888 | 868 | 171.2 |
| B | 10 | 245 | 30226 | 171.49 | 888 | 868 | 171.2 |
| C | 0 | 10 | 889602 | 4370.25 | 858 | 866 | 203.4 |
| C | 3 | 233 | 227135 | 1112.65 | 858 | 866 | 203.4 |
| C | 14 | 238 | 144860 | 708.07 | 858 | 866 | 203.4 |
| D | 8 | 195 | 207476 | 972.7 | 876 | 851 | 212.4 |
| D | 12 | 218 | 170467 | 798.48 | 876 | 851 | 212.4 |
| D | 2 | 250 | 71866 | 334.31 | 876 | 851 | 212.4 |
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 |  |