Observation information
- date-obs: 2025-06-17
- time-obs: 15:41:33.205800000
- date-end: 2025-06-17
- time-end: 17:48:34.188100000
- obs_id: C09_011T06_9000006478
- exposure: 4878.65601498
- 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_52580cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52580cztM0_level2_quad_clean.evt
|
| Size (bytes) | 709,315,200 | 89,331,840 |
| Size | 676.5 MB
| 85.2 MB
|
| Events in quadrant A | 3,801,712 | 633,134 |
| Events in quadrant B | 4,362,400 | 665,197 |
| Events in quadrant C | 7,295,516 | 510,333 |
| Events in quadrant D | 10,280,148 | 430,210 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16119 | 2 |
| B | 0 | 17527 | 2 |
| C | 0 | 26199 | 2 |
| D | 0 | 35234 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6675 | 210 | 3.146067% |
| B | 6675 | 211 | 3.161049% |
| C | 6676 | 1247 | 18.678850% |
| D | 6675 | 2069 | 30.996255% |
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 | 7621 | 6677 | 135 | 135 | 1.77% | 2.02% |  |
| B | 7621 | 6676 | 118 | 118 | 1.55% | 1.77% |  |
| C | 7622 | 6677 | 1199 | 1199 | 15.73% | 17.96% |  |
| D | 7621 | 6676 | 2120 | 2120 | 27.82% | 31.76% |  |
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 | 330436 | 1874.65 | 706 | 689 | 175.9 |
| A | 5 | 243 | 267026 | 1514.15 | 706 | 689 | 175.9 |
| A | 3 | 114 | 130730 | 739.3 | 706 | 689 | 175.9 |
| B | 10 | 254 | 260940 | 1778.08 | 694 | 671 | 146.4 |
| B | 7 | 0 | 256369 | 1746.85 | 694 | 671 | 146.4 |
| B | 4 | 171 | 215128 | 1465.11 | 694 | 671 | 146.4 |
| C | 15 | 248 | 3827176 | 21597.61 | 639 | 632 | 177.2 |
| C | 13 | 3 | 363443 | 2047.76 | 639 | 632 | 177.2 |
| C | 15 | 224 | 237783 | 1338.52 | 639 | 632 | 177.2 |
| D | 6 | 42 | 4493838 | 25986.93 | 608 | 581 | 172.9 |
| D | 15 | 125 | 1429478 | 8264.08 | 608 | 581 | 172.9 |
| D | 11 | 245 | 776291 | 4486.35 | 608 | 581 | 172.9 |
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 |  |