Observation information
- date-obs: 2025-06-12
- time-obs: 10:49:07.263900000
- date-end: 2025-06-12
- time-end: 12:55:39.243900000
- obs_id: A13_037T01_9000006476
- exposure: 2379.92726439
- 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_52503cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52503cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,216,336,320 | 75,700,800 |
| Size | 1.1 GB
| 72.2 MB
|
| Events in quadrant A | 3,781,096 | 703,088 |
| Events in quadrant B | 12,847,087 | 473,063 |
| Events in quadrant C | 11,295,427 | 390,619 |
| Events in quadrant D | 16,515,727 | 196,288 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16573 | 0 |
| B | 0 | 43295 | 0 |
| C | 0 | 38875 | 3 |
| D | 0 | 54241 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7592 | 101 | 1.330348% |
| B | 7593 | 3267 | 43.026472% |
| C | 7592 | 3330 | 43.861960% |
| D | 7592 | 5517 | 72.668599% |
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 | 7592 | 7592 | 39 | 39 | 0.51% | 0.51% |  |
| B | 7592 | 7592 | 2806 | 2806 | 36.96% | 36.96% |  |
| C | 7591 | 7591 | 2749 | 2749 | 36.21% | 36.21% |  |
| D | 7592 | 7592 | 5274 | 5274 | 69.47% | 69.47% |  |
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 | 3 | 62 | 225909 | 1122.72 | 816 | 799 | 200.5 |
| A | 8 | 9 | 87745 | 433.64 | 816 | 799 | 200.5 |
| A | 15 | 174 | 48502 | 237.92 | 816 | 799 | 200.5 |
| B | 10 | 44 | 5483661 | 39892.23 | 639 | 617 | 137.4 |
| B | 10 | 254 | 2734750 | 19892.36 | 639 | 617 | 137.4 |
| B | 7 | 0 | 1628208 | 11841.64 | 639 | 617 | 137.4 |
| C | 15 | 224 | 7400091 | 45594.0 | 591 | 584 | 162.3 |
| C | 4 | 5 | 542234 | 3337.52 | 591 | 584 | 162.3 |
| C | 13 | 3 | 335975 | 2066.6 | 591 | 584 | 162.3 |
| D | 6 | 42 | 9993895 | 70223.18 | 498 | 476 | 142.3 |
| D | 15 | 93 | 3098611 | 21770.42 | 498 | 476 | 142.3 |
| D | 7 | 96 | 438923 | 3080.94 | 498 | 476 | 142.3 |
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 |  |