Observation information
- date-obs: 2025-06-18
- time-obs: 21:00:15.978000000
- date-end: 2025-06-18
- time-end: 23:18:44.957400000
- obs_id: C09_011T06_9000006478
- exposure: 3267.38389361
- 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_52599cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52599cztM0_level2_quad_clean.evt
|
| Size (bytes) | 912,070,080 | 78,085,440 |
| Size | 869.8 MB
| 74.5 MB
|
| Events in quadrant A | 4,684,625 | 594,582 |
| Events in quadrant B | 9,243,909 | 486,525 |
| Events in quadrant C | 6,550,841 | 548,649 |
| Events in quadrant D | 12,784,095 | 283,162 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18475 | 2 |
| B | 0 | 31935 | 2 |
| C | 0 | 24003 | 2 |
| D | 0 | 42443 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 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 | 6457 | 455 | 7.046616% |
| B | 6457 | 2217 | 34.334830% |
| C | 6457 | 775 | 12.002478% |
| D | 6456 | 3587 | 55.560719% |
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 | 7647 | 6458 | 407 | 407 | 5.32% | 6.30% |  |
| B | 7647 | 6458 | 2085 | 2085 | 27.27% | 32.29% |  |
| C | 7647 | 6458 | 703 | 703 | 9.19% | 10.89% |  |
| D | 7646 | 6457 | 3696 | 3696 | 48.34% | 57.24% |  |
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 | 4 | 249 | 938841 | 5644.08 | 656 | 641 | 166.2 |
| A | 3 | 114 | 363068 | 2180.31 | 656 | 641 | 166.2 |
| A | 7 | 30 | 241120 | 1446.69 | 656 | 641 | 166.2 |
| B | 10 | 254 | 3555691 | 27907.99 | 607 | 586 | 127.4 |
| B | 10 | 128 | 1199675 | 9412.99 | 607 | 586 | 127.4 |
| B | 10 | 44 | 984815 | 7726.31 | 607 | 586 | 127.4 |
| C | 15 | 248 | 3355688 | 18840.04 | 640 | 631 | 178.1 |
| C | 1 | 44 | 207174 | 1159.82 | 640 | 631 | 178.1 |
| C | 15 | 233 | 119844 | 669.43 | 640 | 631 | 178.1 |
| D | 12 | 16 | 3586066 | 25115.66 | 482 | 458 | 142.8 |
| D | 2 | 62 | 2069035 | 14489.5 | 482 | 458 | 142.8 |
| D | 8 | 176 | 1786333 | 12509.3 | 482 | 458 | 142.8 |
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 |  |