Observation information
- date-obs: 2025-06-13
- time-obs: 03:43:58.828700000
- date-end: 2025-06-13
- time-end: 04:31:41.079600000
- obs_id: C09_011T06_9000006478
- exposure: 1098.40382171
- 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_52513cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52513cztM0_level2_quad_clean.evt
|
| Size (bytes) | 215,732,160 | 21,669,120 |
| Size | 205.7 MB
| 20.7 MB
|
| Events in quadrant A | 767,820 | 173,131 |
| Events in quadrant B | 1,839,254 | 145,903 |
| Events in quadrant C | 2,508,125 | 106,043 |
| Events in quadrant D | 2,730,924 | 102,151 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3680 | 1 |
| B | 0 | 6693 | 1 |
| C | 0 | 8685 | 7 |
| D | 0 | 9341 | 1 |
| 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 | 36 | 0 |
| B | 0 | 36 | 0 |
| C | 0 | 36 | 0 |
| D | 0 | 36 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1765 | 9 | 0.509915% |
| B | 1765 | 370 | 20.963173% |
| C | 1764 | 720 | 40.816327% |
| D | 1764 | 629 | 35.657596% |
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 | 2865 | 1766 | 2 | 2 | 0.07% | 0.11% |  |
| B | 2865 | 1765 | 241 | 241 | 8.41% | 13.65% |  |
| C | 2864 | 1764 | 567 | 567 | 19.80% | 32.14% |  |
| D | 2864 | 1764 | 646 | 646 | 22.56% | 36.62% |  |
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 | 8 | 249 | 20553 | 429.92 | 184 | 178 | 47.4 |
| A | 8 | 9 | 9571 | 198.19 | 184 | 178 | 47.4 |
| A | 11 | 3 | 6545 | 134.34 | 184 | 178 | 47.4 |
| B | 10 | 44 | 649999 | 17249.53 | 167 | 160 | 37.7 |
| B | 4 | 81 | 239511 | 6353.41 | 167 | 160 | 37.7 |
| B | 10 | 254 | 127645 | 3384.0 | 167 | 160 | 37.7 |
| C | 15 | 224 | 1313365 | 33099.08 | 138 | 137 | 39.7 |
| C | 15 | 233 | 488199 | 12301.29 | 138 | 137 | 39.7 |
| C | 13 | 3 | 90141 | 2268.49 | 138 | 137 | 39.7 |
| D | 6 | 42 | 1584540 | 38014.59 | 139 | 132 | 41.7 |
| D | 15 | 93 | 348178 | 8350.64 | 139 | 132 | 41.7 |
| D | 8 | 176 | 84611 | 2026.9 | 139 | 132 | 41.7 |
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 |  |