Observation information
- date-obs: 2025-06-14
- time-obs: 21:38:36.725400000
- date-end: 2025-06-14
- time-end: 23:52:27.696400000
- obs_id: C09_011T06_9000006478
- exposure: 3140.59397507
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T06_9000006478_52540cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52540cztM0_level2_quad_clean.evt
|
| Size (bytes) | 804,692,160 | 80,055,360 |
| Size | 767.4 MB
| 76.3 MB
|
| Events in quadrant A | 3,253,998 | 623,781 |
| Events in quadrant B | 6,003,699 | 623,661 |
| Events in quadrant C | 11,712,365 | 296,719 |
| Events in quadrant D | 8,321,531 | 432,560 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14404 | 2 |
| B | 0 | 22368 | 2 |
| C | 0 | 39277 | 2 |
| D | 0 | 29172 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6403 | 72 | 1.124473% |
| B | 6403 | 663 | 10.354521% |
| C | 6403 | 3522 | 55.005466% |
| D | 6402 | 1684 | 26.304280% |
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 | 7593 | 6404 | 43 | 43 | 0.57% | 0.67% |  |
| B | 7593 | 6404 | 512 | 512 | 6.74% | 8.00% |  |
| C | 7593 | 6404 | 2924 | 2924 | 38.51% | 45.66% |  |
| D | 7592 | 6403 | 1482 | 1482 | 19.52% | 23.15% |  |
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 | 3 | 46 | 210594 | 1229.15 | 673 | 655 | 170.8 |
| A | 6 | 233 | 112855 | 656.91 | 673 | 655 | 170.8 |
| A | 15 | 174 | 47632 | 275.04 | 673 | 655 | 170.8 |
| B | 10 | 254 | 1454544 | 10575.95 | 647 | 624 | 137.5 |
| B | 10 | 44 | 1183077 | 8601.28 | 647 | 624 | 137.5 |
| B | 0 | 213 | 174983 | 1268.3 | 647 | 624 | 137.5 |
| C | 15 | 248 | 7835418 | 65041.73 | 432 | 428 | 120.5 |
| C | 12 | 254 | 649395 | 5387.36 | 432 | 428 | 120.5 |
| C | 13 | 3 | 541590 | 4492.43 | 432 | 428 | 120.5 |
| D | 8 | 176 | 3184127 | 19153.21 | 573 | 544 | 166.2 |
| D | 15 | 125 | 963613 | 5794.06 | 573 | 544 | 166.2 |
| D | 6 | 42 | 402462 | 2418.04 | 573 | 544 | 166.2 |
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 |  |