Observation information
- date-obs: 2025-06-13
- time-obs: 19:40:16.940800000
- date-end: 2025-06-13
- time-end: 21:50:59.922100000
- obs_id: C09_011T06_9000006478
- exposure: 4558.80728048
- 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_52524cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52524cztM0_level2_quad_clean.evt
|
| Size (bytes) | 625,184,640 | 91,520,640 |
| Size | 596.2 MB
| 87.3 MB
|
| Events in quadrant A | 3,146,363 | 647,903 |
| Events in quadrant B | 4,261,258 | 674,391 |
| Events in quadrant C | 5,372,407 | 583,630 |
| Events in quadrant D | 9,857,720 | 410,796 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14227 | 2 |
| B | 0 | 17101 | 2 |
| C | 0 | 20545 | 2 |
| D | 0 | 33880 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6506 | 77 | 1.183523% |
| B | 6506 | 179 | 2.751306% |
| C | 6506 | 492 | 7.562250% |
| D | 6506 | 2219 | 34.106978% |
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 | 7596 | 6507 | 26 | 26 | 0.34% | 0.40% |  |
| B | 7596 | 6507 | 93 | 93 | 1.22% | 1.43% |  |
| C | 7596 | 6507 | 422 | 422 | 5.56% | 6.49% |  |
| D | 7596 | 6507 | 2056 | 2056 | 27.07% | 31.60% |  |
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 | 5 | 243 | 79149 | 445.45 | 694 | 676 | 176.2 |
| A | 11 | 3 | 63438 | 356.27 | 694 | 676 | 176.2 |
| A | 3 | 14 | 58889 | 330.45 | 694 | 676 | 176.2 |
| B | 10 | 254 | 516142 | 3578.35 | 684 | 661 | 144.1 |
| B | 4 | 81 | 345218 | 2391.84 | 684 | 661 | 144.1 |
| B | 12 | 32 | 135149 | 933.58 | 684 | 661 | 144.1 |
| C | 2 | 12 | 776961 | 4181.31 | 659 | 650 | 185.7 |
| C | 13 | 3 | 400518 | 2153.74 | 659 | 650 | 185.7 |
| C | 12 | 252 | 266089 | 1429.69 | 659 | 650 | 185.7 |
| D | 15 | 93 | 4743353 | 28901.74 | 559 | 533 | 164.1 |
| D | 6 | 42 | 853594 | 5198.37 | 559 | 533 | 164.1 |
| D | 8 | 176 | 353615 | 2151.61 | 559 | 533 | 164.1 |
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 |  |