Observation information
- date-obs: 2025-06-14
- time-obs: 19:53:36.740300000
- date-end: 2025-06-14
- time-end: 22:08:15.711400000
- obs_id: C09_011T06_9000006478
- exposure: 3600.00212938
- 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_52539cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52539cztM0_level2_quad_clean.evt
|
| Size (bytes) | 779,302,080 | 82,319,040 |
| Size | 743.2 MB
| 78.5 MB
|
| Events in quadrant A | 3,055,236 | 635,797 |
| Events in quadrant B | 6,077,794 | 612,304 |
| Events in quadrant C | 10,702,364 | 338,608 |
| Events in quadrant D | 8,512,399 | 455,104 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14005 | 2 |
| B | 0 | 22553 | 7 |
| C | 0 | 36318 | 2 |
| D | 0 | 29854 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 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 | 6451 | 77 | 1.193613% |
| B | 6450 | 781 | 12.108527% |
| C | 6450 | 3097 | 48.015504% |
| D | 6450 | 1634 | 25.333333% |
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 | 7581 | 6452 | 30 | 30 | 0.40% | 0.46% |  |
| B | 7580 | 6451 | 559 | 559 | 7.37% | 8.67% |  |
| C | 7579 | 6450 | 2400 | 2400 | 31.67% | 37.21% |  |
| D | 7580 | 6450 | 1370 | 1370 | 18.07% | 21.24% |  |
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 | 118693 | 687.13 | 685 | 666 | 171.8 |
| A | 5 | 240 | 54818 | 315.26 | 685 | 666 | 171.8 |
| A | 4 | 249 | 44026 | 252.43 | 685 | 666 | 171.8 |
| B | 10 | 44 | 1659630 | 12135.18 | 644 | 624 | 136.7 |
| B | 10 | 254 | 1102060 | 8056.7 | 644 | 624 | 136.7 |
| B | 10 | 247 | 183885 | 1340.5 | 644 | 624 | 136.7 |
| C | 15 | 248 | 6397262 | 47878.88 | 477 | 472 | 133.6 |
| C | 15 | 224 | 1196728 | 8953.77 | 477 | 472 | 133.6 |
| C | 12 | 254 | 509791 | 3812.17 | 477 | 472 | 133.6 |
| D | 8 | 176 | 2536428 | 14840.41 | 594 | 567 | 170.9 |
| D | 15 | 125 | 1743100 | 10197.69 | 594 | 567 | 170.9 |
| D | 6 | 42 | 311812 | 1821.47 | 594 | 567 | 170.9 |
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 |  |