Observation information
- date-obs: 2025-06-16
- time-obs: 17:15:43.379500000
- date-end: 2025-06-16
- time-end: 19:15:37.363700000
- obs_id: C09_011T06_9000006478
- exposure: 4747.26279449
- 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_52567cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52567cztM0_level2_quad_clean.evt
|
| Size (bytes) | 627,912,000 | 84,677,760 |
| Size | 598.8 MB
| 80.8 MB
|
| Events in quadrant A | 3,753,627 | 574,756 |
| Events in quadrant B | 5,615,584 | 616,696 |
| Events in quadrant C | 7,897,825 | 433,982 |
| Events in quadrant D | 5,500,478 | 509,060 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15708 | 1 |
| B | 0 | 21030 | 1 |
| C | 0 | 27759 | 1 |
| D | 0 | 20688 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6144 | 303 | 4.931641% |
| B | 6144 | 219 | 3.564453% |
| C | 6145 | 1586 | 25.809601% |
| D | 6145 | 534 | 8.689992% |
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 | 7194 | 6145 | 251 | 251 | 3.49% | 4.08% |  |
| B | 7194 | 6145 | 146 | 146 | 2.03% | 2.38% |  |
| C | 7194 | 6144 | 1426 | 1426 | 19.82% | 23.21% |  |
| D | 7195 | 6145 | 483 | 483 | 6.71% | 7.86% |  |
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 | 15 | 239 | 460846 | 2900.31 | 629 | 613 | 158.7 |
| A | 5 | 243 | 381156 | 2398.12 | 629 | 613 | 158.7 |
| A | 4 | 249 | 312025 | 1962.47 | 629 | 613 | 158.7 |
| B | 7 | 0 | 1663267 | 12366.14 | 630 | 608 | 134.5 |
| B | 10 | 254 | 568093 | 4220.71 | 630 | 608 | 134.5 |
| B | 10 | 44 | 255315 | 1894.4 | 630 | 608 | 134.5 |
| C | 15 | 248 | 4527629 | 28975.39 | 555 | 548 | 156.2 |
| C | 15 | 224 | 486662 | 3111.35 | 555 | 548 | 156.2 |
| C | 13 | 3 | 283280 | 1809.61 | 555 | 548 | 156.2 |
| D | 8 | 176 | 1144642 | 6634.57 | 606 | 580 | 172.4 |
| D | 12 | 17 | 278674 | 1612.71 | 606 | 580 | 172.4 |
| D | 15 | 125 | 248550 | 1438.01 | 606 | 580 | 172.4 |
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 |  |