Observation information
- date-obs: 2024-09-24
- time-obs: 00:32:19.452300000
- date-end: 2024-09-24
- time-end: 02:50:26.444500000
- obs_id: A13_037T01_9000006436
- exposure: 6079.87507987
- 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_9000006436_48622cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48622cztM0_level2_quad_clean.evt
|
| Size (bytes) | 446,725,440 | 105,577,920 |
| Size | 426.0 MB
| 100.7 MB
|
| Events in quadrant A | 7,157,638 | 665,167 |
| Events in quadrant B | 2,901,459 | 738,011 |
| Events in quadrant C | 2,760,966 | 709,970 |
| Events in quadrant D | 3,208,716 | 628,456 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25803 | 2 |
| B | 0 | 13506 | 2 |
| C | 0 | 13301 | 2 |
| D | 0 | 14509 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6534 | 463 | 7.086012% |
| B | 6534 | 50 | 0.765228% |
| C | 6534 | 18 | 0.275482% |
| D | 6533 | 84 | 1.285780% |
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 | 7649 | 6536 | 204 | 204 | 2.67% | 3.12% |  |
| B | 7649 | 6536 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7649 | 6536 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7648 | 6535 | 69 | 69 | 0.90% | 1.06% |  |
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 | 10 | 83 | 4045891 | 28132.01 | 691 | 675 | 143.8 |
| A | 13 | 248 | 408081 | 2833.26 | 691 | 675 | 143.8 |
| A | 13 | 254 | 12508 | 82.29 | 691 | 675 | 143.8 |
| B | 12 | 16 | 54562 | 381.39 | 714 | 690 | 141.3 |
| B | 12 | 111 | 17902 | 121.85 | 714 | 690 | 141.3 |
| B | 11 | 111 | 16608 | 112.69 | 714 | 690 | 141.3 |
| C | 14 | 254 | 12603 | 71.5 | 705 | 707 | 166.4 |
| C | 13 | 61 | 4740 | 24.24 | 705 | 707 | 166.4 |
| C | 12 | 249 | 4632 | 23.59 | 705 | 707 | 166.4 |
| D | 10 | 199 | 317176 | 1830.92 | 687 | 666 | 172.9 |
| D | 2 | 249 | 145477 | 837.69 | 687 | 666 | 172.9 |
| D | 15 | 127 | 37583 | 213.55 | 687 | 666 | 172.9 |
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 |  |