Observation information
- date-obs: 2021-06-30
- time-obs: 19:35:33.822700000
- date-end: 2021-06-30
- time-end: 21:39:09.821500000
- obs_id: A10_109T01_9000004492
- exposure: 4680.0497373
- 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_31124cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31124cztM0_level2_quad_clean.evt
|
| Size (bytes) | 517,199,040 | 107,798,400 |
| Size | 493.2 MB
| 102.8 MB
|
| Events in quadrant A | 3,217,527 | 716,121 |
| Events in quadrant B | 5,121,681 | 712,476 |
| Events in quadrant C | 3,423,728 | 697,108 |
| Events in quadrant D | 3,459,662 | 685,590 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13520 | 2 |
| B | 0 | 19661 | 2 |
| C | 0 | 14039 | 2 |
| D | 0 | 14395 | 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 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6496 | 26 | 0.400246% |
| B | 6497 | 94 | 1.446822% |
| C | 6497 | 127 | 1.954748% |
| D | 6497 | 32 | 0.492535% |
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 | 7416 | 6498 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7417 | 6499 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7417 | 6499 | 5 | 5 | 0.07% | 0.08% |  |
| D | 7417 | 6499 | 7 | 7 | 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 | 10965 | 60.65 | 834 | 818 | 167.3 |
| A | 3 | 137 | 8307 | 44.76 | 834 | 818 | 167.3 |
| A | 0 | 226 | 6826 | 35.91 | 834 | 818 | 167.3 |
| B | 6 | 159 | 1826810 | 11566.35 | 825 | 805 | 157.9 |
| B | 0 | 190 | 23179 | 141.72 | 825 | 805 | 157.9 |
| B | 0 | 183 | 19511 | 118.49 | 825 | 805 | 157.9 |
| C | 14 | 238 | 130638 | 682.71 | 812 | 821 | 190.1 |
| C | 0 | 10 | 73750 | 383.54 | 812 | 821 | 190.1 |
| C | 14 | 225 | 20327 | 102.58 | 812 | 821 | 190.1 |
| D | 8 | 195 | 304407 | 1558.28 | 817 | 797 | 194.8 |
| D | 2 | 250 | 44449 | 224.04 | 817 | 797 | 194.8 |
| D | 2 | 234 | 24784 | 123.11 | 817 | 797 | 194.8 |
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 |  |