Observation information
- date-obs: 2025-06-12
- time-obs: 05:48:28.314300000
- date-end: 2025-06-12
- time-end: 18:07:25.191200000
- obs_id: A13_037T01_9000006476
- exposure: 31233.7827343
- 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_52506cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52506cztM0_level2_quad_clean.evt
|
| Size (bytes) | 4,915,690,560 | 529,142,400 |
| Size | 4.6 GB
| 504.6 MB
|
| Events in quadrant A | 20,341,571 | 4,013,533 |
| Events in quadrant B | 57,025,412 | 3,238,906 |
| Events in quadrant C | 51,733,103 | 2,898,263 |
| Events in quadrant D | 49,607,934 | 2,962,162 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 90302 | 4 |
| B | 0 | 198369 | 4 |
| C | 0 | 183066 | 4 |
| D | 0 | 176873 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 856 | 0 |
| B | 0 | 856 | 0 |
| C | 0 | 856 | 0 |
| D | 0 | 856 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 42317 | 547 | 1.292625% |
| B | 42317 | 12342 | 29.165584% |
| C | 42317 | 11216 | 26.504714% |
| D | 42317 | 8602 | 20.327528% |
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 | 44337 | 42319 | 110 | 110 | 0.25% | 0.26% |  |
| B | 44336 | 42317 | 10340 | 10340 | 23.32% | 24.43% |  |
| C | 44336 | 42316 | 9744 | 9744 | 21.98% | 23.03% |  |
| D | 44337 | 42318 | 8104 | 8104 | 18.28% | 19.15% |  |
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 | 9 | 597853 | 529.1 | 4576 | 4466 | 1121.5 |
| A | 11 | 3 | 450418 | 397.64 | 4576 | 4466 | 1121.5 |
| A | 3 | 62 | 257016 | 225.19 | 4576 | 4466 | 1121.5 |
| B | 10 | 44 | 20253339 | 23932.11 | 3941 | 3793 | 846.1 |
| B | 10 | 254 | 10329142 | 12203.11 | 3941 | 3793 | 846.1 |
| B | 7 | 0 | 3898422 | 4602.9 | 3941 | 3793 | 846.1 |
| C | 15 | 224 | 26097476 | 24695.09 | 3838 | 3812 | 1056.6 |
| C | 4 | 5 | 2715637 | 2566.48 | 3838 | 3812 | 1056.6 |
| C | 13 | 3 | 2647517 | 2502.01 | 3838 | 3812 | 1056.6 |
| D | 15 | 93 | 13723643 | 12124.91 | 4025 | 3859 | 1131.5 |
| D | 6 | 42 | 11571319 | 10222.78 | 4025 | 3859 | 1131.5 |
| D | 12 | 17 | 1268898 | 1117.98 | 4025 | 3859 | 1131.5 |
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 |  |