Observation information
- date-obs: 2025-06-10
- time-obs: 08:32:08.778700000
- date-end: 2025-06-10
- time-end: 10:36:12.758000000
- obs_id: A13_037T01_9000006476
- exposure: 1558.73941463
- 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_52472cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52472cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,021,092,480 | 86,279,040 |
| Size | 973.8 MB
| 82.3 MB
|
| Events in quadrant A | 4,057,352 | 695,117 |
| Events in quadrant B | 4,486,717 | 751,942 |
| Events in quadrant C | 10,364,413 | 544,932 |
| Events in quadrant D | 18,312,158 | 97,676 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17154 | 0 |
| B | 0 | 18274 | 0 |
| C | 0 | 36012 | 0 |
| D | 0 | 59479 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7444 | 82 | 1.101558% |
| B | 7444 | 129 | 1.732939% |
| C | 7444 | 2333 | 31.340677% |
| D | 7444 | 7444 | 100.000000% |
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 | 7444 | 7444 | 44 | 44 | 0.59% | 0.59% |  |
| B | 7444 | 7444 | 30 | 30 | 0.40% | 0.40% |  |
| C | 7444 | 7444 | 1974 | 1974 | 26.52% | 26.52% |  |
| D | 7443 | 7443 | 6691 | 6691 | 89.90% | 89.90% |  |
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 | 8 | 249 | 257991 | 1303.4 | 801 | 778 | 197.3 |
| A | 4 | 61 | 230201 | 1162.57 | 801 | 778 | 197.3 |
| A | 3 | 14 | 220915 | 1115.52 | 801 | 778 | 197.3 |
| B | 4 | 171 | 382866 | 2238.6 | 792 | 763 | 170.7 |
| B | 4 | 170 | 336591 | 1967.49 | 792 | 763 | 170.7 |
| B | 4 | 81 | 246916 | 1442.12 | 792 | 763 | 170.7 |
| C | 15 | 248 | 4518270 | 25191.9 | 656 | 650 | 179.3 |
| C | 15 | 224 | 1375657 | 7667.54 | 656 | 650 | 179.3 |
| C | 4 | 5 | 1182599 | 6590.98 | 656 | 650 | 179.3 |
| D | 15 | 93 | 17066927 | 417235.89 | 137 | 129 | 40.9 |
| D | 6 | 42 | 396279 | 9684.77 | 137 | 129 | 40.9 |
| D | 2 | 153 | 103378 | 2524.15 | 137 | 129 | 40.9 |
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 |  |