Observation information
- date-obs: 2025-06-23
- time-obs: 20:54:48.111000000
- date-end: 2025-06-23
- time-end: 23:01:45.996200000
- obs_id: C09_011T07_9000006480
- exposure: 2932.36861479
- 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_011T07_9000006480_52673cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52673cztM0_level2_quad_clean.evt
|
| Size (bytes) | 871,608,960 | 79,390,080 |
| Size | 831.2 MB
| 75.7 MB
|
| Events in quadrant A | 3,536,284 | 625,201 |
| Events in quadrant B | 8,294,569 | 539,220 |
| Events in quadrant C | 7,139,792 | 521,904 |
| Events in quadrant D | 12,786,041 | 258,904 |
Level1 data integrity
| 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 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15243 | 4 |
| B | 0 | 29244 | 2 |
| C | 0 | 25839 | 2 |
| D | 0 | 42545 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6567 | 67 | 1.020253% |
| B | 6567 | 1536 | 23.389676% |
| C | 6567 | 1019 | 15.516979% |
| D | 6568 | 3834 | 58.373934% |
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 | 7616 | 6566 | 31 | 31 | 0.41% | 0.47% |  |
| B | 7616 | 6566 | 1097 | 1097 | 14.40% | 16.71% |  |
| C | 7616 | 6566 | 999 | 999 | 13.12% | 15.21% |  |
| D | 7617 | 6567 | 3863 | 3863 | 50.72% | 58.82% |  |
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 | 3 | 14 | 387123 | 2301.54 | 672 | 654 | 167.9 |
| A | 4 | 238 | 145668 | 863.6 | 672 | 654 | 167.9 |
| A | 5 | 240 | 74824 | 441.71 | 672 | 654 | 167.9 |
| B | 10 | 128 | 3948263 | 29867.81 | 626 | 605 | 132.2 |
| B | 12 | 32 | 426525 | 3222.49 | 626 | 605 | 132.2 |
| B | 4 | 170 | 306516 | 2314.51 | 626 | 605 | 132.2 |
| C | 15 | 248 | 2735939 | 15827.15 | 618 | 612 | 172.8 |
| C | 12 | 252 | 552723 | 3194.62 | 618 | 612 | 172.8 |
| C | 13 | 3 | 361850 | 2090.2 | 618 | 612 | 172.8 |
| D | 8 | 176 | 6737431 | 53072.06 | 425 | 403 | 126.9 |
| D | 6 | 42 | 2763510 | 21766.84 | 425 | 403 | 126.9 |
| D | 1 | 7 | 559884 | 4407.4 | 425 | 403 | 126.9 |
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 |  |