Observation information
- date-obs: 2025-06-10
- time-obs: 05:13:19.812100000
- date-end: 2025-06-10
- time-end: 07:07:43.792000000
- obs_id: A13_037T01_9000006476
- exposure: 34.4692199826
- 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_52470cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52470cztM0_level2_quad_clean.evt
|
| Size (bytes) | 841,101,120 | 59,869,440 |
| Size | 802.1 MB
| 57.1 MB
|
| Events in quadrant A | 3,349,470 | 545,111 |
| Events in quadrant B | 5,211,440 | 525,337 |
| Events in quadrant C | 7,830,731 | 337,230 |
| Events in quadrant D | 14,297,174 | 2,845 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14204 | 208 |
| B | 0 | 19684 | 240 |
| C | 0 | 29285 | 1952 |
| D | 0 | 48579 | 2151 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 3 |
| B | 0 | 120 | 1 |
| C | 0 | 121 | 1 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5827 | 153 | 2.625708% |
| B | 5821 | 849 | 14.585123% |
| C | 5678 | 2048 | 36.069038% |
| D | 5672 | 5647 | 99.559238% |
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 | 6864 | 5891 | 75 | 75 | 1.09% | 1.27% |  |
| B | 6864 | 5898 | 628 | 628 | 9.15% | 10.65% |  |
| C | 6864 | 5760 | 1693 | 1693 | 24.66% | 29.39% |  |
| D | 6864 | 5776 | 5206 | 5206 | 75.84% | 90.13% |  |
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 | 624145 | 4009.58 | 630 | 613 | 155.5 |
| A | 8 | 25 | 82005 | 523.39 | 630 | 613 | 155.5 |
| A | 11 | 3 | 72515 | 462.36 | 630 | 613 | 155.5 |
| B | 10 | 44 | 1285030 | 9980.13 | 594 | 573 | 128.7 |
| B | 10 | 254 | 741629 | 5757.95 | 594 | 573 | 128.7 |
| B | 4 | 81 | 236702 | 1834.7 | 594 | 573 | 128.7 |
| C | 15 | 224 | 5388341 | 42770.24 | 459 | 456 | 126.0 |
| C | 4 | 5 | 159361 | 1261.42 | 459 | 456 | 126.0 |
| C | 15 | 199 | 143150 | 1132.74 | 459 | 456 | 126.0 |
| D | 15 | 93 | 13136105 | 352184.88 | 127 | 121 | 37.3 |
| D | 6 | 42 | 309863 | 8304.4 | 127 | 121 | 37.3 |
| D | 8 | 176 | 99250 | 2657.72 | 127 | 121 | 37.3 |
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 |  |