Observation information
- date-obs: 2025-06-07
- time-obs: 19:36:58.412000000
- date-end: 2025-06-07
- time-end: 21:51:50.388800000
- obs_id: A13_037T01_9000006476
- exposure: 5352.34508187
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_037T01_9000006476_52434cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52434cztM0_level2_quad_clean.evt
|
| Size (bytes) | 671,181,120 | 95,725,440 |
| Size | 640.1 MB
| 91.3 MB
|
| Events in quadrant A | 3,393,763 | 673,395 |
| Events in quadrant B | 5,340,831 | 659,963 |
| Events in quadrant C | 6,363,185 | 589,168 |
| Events in quadrant D | 9,210,297 | 493,195 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15294 | 2 |
| B | 0 | 20836 | 2 |
| C | 0 | 23939 | 7 |
| D | 0 | 32195 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6927 | 157 | 2.266493% |
| B | 6927 | 695 | 10.033203% |
| C | 6926 | 832 | 12.012706% |
| D | 6926 | 1783 | 25.743575% |
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 | 7782 | 6927 | 89 | 89 | 1.14% | 1.28% |  |
| B | 7782 | 6928 | 548 | 548 | 7.04% | 7.91% |  |
| C | 7781 | 6926 | 683 | 683 | 8.78% | 9.86% |  |
| D | 7780 | 6926 | 1670 | 1670 | 21.47% | 24.11% |  |
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 | 248 | 225246 | 1205.99 | 742 | 723 | 186.2 |
| A | 5 | 240 | 93078 | 496.07 | 742 | 723 | 186.2 |
| A | 4 | 3 | 52999 | 280.79 | 742 | 723 | 186.2 |
| B | 5 | 172 | 1932167 | 12858.93 | 698 | 673 | 150.2 |
| B | 12 | 32 | 128845 | 853.31 | 698 | 673 | 150.2 |
| B | 4 | 171 | 122346 | 810.04 | 698 | 673 | 150.2 |
| C | 12 | 254 | 1190194 | 6167.58 | 695 | 689 | 192.9 |
| C | 4 | 5 | 971685 | 5034.61 | 695 | 689 | 192.9 |
| C | 15 | 248 | 287007 | 1484.56 | 695 | 689 | 192.9 |
| D | 12 | 17 | 2734879 | 14378.93 | 655 | 623 | 190.2 |
| D | 15 | 93 | 1992162 | 10473.12 | 655 | 623 | 190.2 |
| D | 12 | 6 | 514247 | 2701.05 | 655 | 623 | 190.2 |
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 |  |