Observation information
- date-obs: 2025-07-07
- time-obs: 09:33:42.357100000
- date-end: 2025-07-07
- time-end: 11:30:40.341900000
- obs_id: C09_011T08_9000006482
- exposure: 124.807724118
- 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_011T08_9000006482_52874cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52874cztM0_level2_quad_clean.evt
|
| Size (bytes) | 869,788,800 | 63,123,840 |
| Size | 829.5 MB
| 60.2 MB
|
| Events in quadrant A | 14,182,503 | 13,446 |
| Events in quadrant B | 7,228,670 | 512,727 |
| Events in quadrant C | 5,895,625 | 464,761 |
| Events in quadrant D | 4,435,770 | 510,126 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 45991 | 1 |
| B | 0 | 25485 | 1 |
| C | 0 | 21604 | 1 |
| D | 0 | 17186 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5863 | 5779 | 98.567286% |
| B | 5864 | 1376 | 23.465211% |
| C | 5864 | 1087 | 18.536835% |
| D | 5863 | 265 | 4.519870% |
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 | 7017 | 5862 | 5397 | 5397 | 76.91% | 92.07% |  |
| B | 7019 | 5864 | 1061 | 1061 | 15.12% | 18.09% |  |
| C | 7019 | 5865 | 900 | 900 | 12.82% | 15.35% |  |
| D | 7018 | 5864 | 227 | 227 | 3.23% | 3.87% |  |
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 | 9 | 191 | 12956012 | 205545.62 | 246 | 240 | 63.0 |
| A | 3 | 62 | 49359 | 779.28 | 246 | 240 | 63.0 |
| A | 0 | 8 | 48944 | 772.7 | 246 | 240 | 63.0 |
| B | 8 | 3 | 4065962 | 33413.05 | 575 | 556 | 121.7 |
| B | 7 | 0 | 162959 | 1334.77 | 575 | 556 | 121.7 |
| B | 5 | 185 | 158362 | 1296.99 | 575 | 556 | 121.7 |
| C | 2 | 12 | 1731901 | 11516.76 | 547 | 541 | 150.3 |
| C | 15 | 224 | 1062073 | 7061.16 | 547 | 541 | 150.3 |
| C | 7 | 80 | 399320 | 2652.62 | 547 | 541 | 150.3 |
| D | 8 | 176 | 767204 | 4478.72 | 600 | 574 | 171.2 |
| D | 12 | 191 | 379987 | 2216.56 | 600 | 574 | 171.2 |
| D | 8 | 48 | 329404 | 1921.05 | 600 | 574 | 171.2 |
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 |  |