Observation information
- date-obs: 2025-06-16
- time-obs: 18:51:56.367300000
- date-end: 2025-06-16
- time-end: 20:57:19.350400000
- obs_id: C09_011T06_9000006478
- exposure: 4115.3583855
- 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_52568cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52568cztM0_level2_quad_clean.evt
|
| Size (bytes) | 727,444,800 | 85,193,280 |
| Size | 693.7 MB
| 81.2 MB
|
| Events in quadrant A | 3,638,202 | 608,373 |
| Events in quadrant B | 7,082,708 | 625,394 |
| Events in quadrant C | 9,636,502 | 388,345 |
| Events in quadrant D | 6,080,765 | 515,366 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15421 | 2 |
| B | 0 | 25472 | 2 |
| C | 0 | 33038 | 2 |
| D | 0 | 22463 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 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 | 6328 | 252 | 3.982301% |
| B | 6328 | 606 | 9.576485% |
| C | 6328 | 2431 | 38.416561% |
| D | 6328 | 793 | 12.531606% |
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 | 7458 | 6329 | 205 | 205 | 2.75% | 3.24% |  |
| B | 7458 | 6328 | 386 | 386 | 5.18% | 6.10% |  |
| C | 7458 | 6329 | 2214 | 2214 | 29.69% | 34.98% |  |
| D | 7458 | 6328 | 726 | 726 | 9.73% | 11.47% |  |
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 | 450475 | 2726.43 | 662 | 646 | 165.0 |
| A | 5 | 243 | 294480 | 1780.94 | 662 | 646 | 165.0 |
| A | 10 | 253 | 51100 | 305.8 | 662 | 646 | 165.0 |
| B | 10 | 254 | 1889800 | 13639.19 | 651 | 629 | 138.5 |
| B | 7 | 0 | 1321226 | 9534.28 | 651 | 629 | 138.5 |
| B | 10 | 44 | 606014 | 4370.68 | 651 | 629 | 138.5 |
| C | 15 | 224 | 3376007 | 22594.85 | 535 | 528 | 149.4 |
| C | 15 | 248 | 3363345 | 22510.09 | 535 | 528 | 149.4 |
| C | 13 | 3 | 413850 | 2766.7 | 535 | 528 | 149.4 |
| D | 8 | 176 | 2077852 | 11648.45 | 619 | 592 | 178.3 |
| D | 6 | 42 | 539444 | 3021.67 | 619 | 592 | 178.3 |
| D | 3 | 12 | 196371 | 1097.85 | 619 | 592 | 178.3 |
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 |  |