Observation information
- date-obs: 2025-06-10
- time-obs: 03:18:48.832900000
- date-end: 2025-06-10
- time-end: 05:23:34.810000000
- obs_id: A13_037T01_9000006476
- exposure: 22.8012130857
- 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_52469cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52469cztM0_level2_quad_clean.evt
|
| Size (bytes) | 537,474,240 | 55,272,960 |
| Size | 512.6 MB
| 52.7 MB
|
| Events in quadrant A | 2,400,496 | 445,938 |
| Events in quadrant B | 2,816,242 | 472,849 |
| Events in quadrant C | 2,322,917 | 423,490 |
| Events in quadrant D | 11,989,664 | 1,871 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11028 | 486 |
| B | 0 | 12511 | 667 |
| C | 0 | 10904 | 442 |
| D | 0 | 41064 | 2286 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 96 | 2 |
| B | 0 | 96 | 4 |
| C | 0 | 96 | 2 |
| D | 0 | 98 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4713 | 36 | 0.763845% |
| B | 4697 | 149 | 3.172238% |
| C | 4721 | 39 | 0.826096% |
| D | 4632 | 4617 | 99.676166% |
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 | 7486 | 4761 | 29 | 29 | 0.39% | 0.61% |  |
| B | 7487 | 4737 | 125 | 125 | 1.67% | 2.64% |  |
| C | 7487 | 4760 | 42 | 42 | 0.56% | 0.88% |  |
| D | 7487 | 4670 | 4256 | 4256 | 56.85% | 91.13% |  |
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 | 228864 | 1926.68 | 478 | 467 | 118.5 |
| A | 3 | 14 | 105572 | 886.63 | 478 | 467 | 118.5 |
| A | 13 | 248 | 67645 | 566.69 | 478 | 467 | 118.5 |
| B | 10 | 44 | 383800 | 3807.83 | 467 | 451 | 100.7 |
| B | 10 | 254 | 233971 | 2319.57 | 467 | 451 | 100.7 |
| B | 4 | 171 | 127599 | 1262.97 | 467 | 451 | 100.7 |
| C | 13 | 3 | 251323 | 1993.34 | 458 | 455 | 125.9 |
| C | 12 | 254 | 97510 | 771.18 | 458 | 455 | 125.9 |
| C | 15 | 224 | 82341 | 650.65 | 458 | 455 | 125.9 |
| D | 15 | 93 | 11042257 | 317617.27 | 115 | 110 | 34.8 |
| D | 6 | 42 | 136190 | 3914.22 | 115 | 110 | 34.8 |
| D | 15 | 24 | 79032 | 2270.12 | 115 | 110 | 34.8 |
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 |  |