Observation information
- date-obs: 2025-07-09
- time-obs: 20:26:31.893400000
- date-end: 2025-07-10
- time-end: 00:16:34.863600000
- obs_id: C09_011T06_9000006484
- exposure: 16.927133739
- 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_9000006484_52912cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52912cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,973,615,040 | 128,266,560 |
| Size | 1.8 GB
| 122.3 MB
|
| Events in quadrant A | 33,756,956 | 1,444 |
| Events in quadrant B | 13,148,432 | 922,657 |
| Events in quadrant C | 9,745,340 | 1,122,085 |
| Events in quadrant D | 15,367,952 | 907,639 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 108953 | 1 |
| B | 0 | 48623 | 1 |
| C | 0 | 38511 | 1 |
| D | 0 | 55205 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 272 | 0 |
| B | 0 | 272 | 0 |
| C | 0 | 272 | 0 |
| D | 0 | 272 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13443 | 13432 | 99.918173% |
| B | 13443 | 4109 | 30.566094% |
| C | 13444 | 967 | 7.192800% |
| D | 13443 | 2916 | 21.691587% |
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 | 13803 | 13444 | 12713 | 12713 | 92.10% | 94.56% |  |
| B | 13803 | 13443 | 1909 | 1909 | 13.83% | 14.20% |  |
| C | 13804 | 13445 | 647 | 647 | 4.69% | 4.81% |  |
| D | 13803 | 13444 | 2467 | 2467 | 17.87% | 18.35% |  |
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 | 31600315 | 362054.98 | 338 | 330 | 87.3 |
| A | 12 | 17 | 255527 | 2923.9 | 338 | 330 | 87.3 |
| A | 4 | 238 | 160702 | 1837.45 | 338 | 330 | 87.3 |
| B | 12 | 32 | 7623337 | 34953.63 | 1035 | 999 | 218.1 |
| B | 7 | 0 | 343204 | 1569.24 | 1035 | 999 | 218.1 |
| B | 10 | 44 | 216078 | 986.28 | 1035 | 999 | 218.1 |
| C | 15 | 224 | 1048247 | 2796.37 | 1359 | 1348 | 374.4 |
| C | 7 | 80 | 846946 | 2258.67 | 1359 | 1348 | 374.4 |
| C | 15 | 178 | 749026 | 1997.12 | 1359 | 1348 | 374.4 |
| D | 8 | 176 | 5179074 | 14463.01 | 1241 | 1186 | 358.0 |
| D | 15 | 125 | 1287207 | 3592.15 | 1241 | 1186 | 358.0 |
| D | 2 | 249 | 1205057 | 3362.68 | 1241 | 1186 | 358.0 |
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 |  |