Observation information
- date-obs: 2025-06-10
- time-obs: 01:20:17.854400000
- date-end: 2025-06-10
- time-end: 03:40:51.828500000
- obs_id: A13_037T01_9000006476
- exposure: 5.47426259518
- 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_52468cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52468cztM0_level2_quad_clean.evt
|
| Size (bytes) | 477,987,840 | 46,500,480 |
| Size | 455.8 MB
| 44.3 MB
|
| Events in quadrant A | 2,879,185 | 364,046 |
| Events in quadrant B | 2,060,108 | 414,925 |
| Events in quadrant C | 2,849,267 | 355,439 |
| Events in quadrant D | 9,604,146 | 439 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12231 | 968 |
| B | 0 | 9952 | 1125 |
| C | 0 | 12446 | 1241 |
| D | 0 | 36379 | 5282 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 4 |
| B | 0 | 87 | 11 |
| C | 0 | 87 | 5 |
| D | 0 | 87 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3915 | 212 | 5.415070% |
| B | 3904 | 22 | 0.563525% |
| C | 3910 | 156 | 3.989770% |
| D | 3698 | 3695 | 99.918875% |
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 | 7861 | 4010 | 216 | 216 | 2.75% | 5.39% |  |
| B | 7861 | 4006 | 3 | 3 | 0.04% | 0.07% |  |
| C | 7861 | 4005 | 155 | 155 | 1.97% | 3.87% |  |
| D | 7861 | 3876 | 3324 | 3324 | 42.28% | 85.76% |  |
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 | 1143950 | 11682.08 | 394 | 386 | 97.9 |
| A | 3 | 14 | 68760 | 698.47 | 394 | 386 | 97.9 |
| A | 5 | 240 | 23938 | 240.6 | 394 | 386 | 97.9 |
| B | 10 | 254 | 250940 | 2890.13 | 401 | 388 | 86.7 |
| B | 4 | 171 | 90780 | 1042.68 | 401 | 388 | 86.7 |
| B | 4 | 81 | 37949 | 433.27 | 401 | 388 | 86.7 |
| C | 2 | 12 | 365414 | 3375.13 | 385 | 381 | 108.2 |
| C | 13 | 3 | 289288 | 2671.26 | 385 | 381 | 108.2 |
| C | 15 | 199 | 258544 | 2387.0 | 385 | 381 | 108.2 |
| D | 15 | 93 | 8223512 | 278308.16 | 96 | 92 | 29.5 |
| D | 6 | 42 | 679749 | 23001.88 | 96 | 92 | 29.5 |
| D | 2 | 153 | 167712 | 5672.82 | 96 | 92 | 29.5 |
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 |  |