Observation information
- date-obs: 2025-05-30
- time-obs: 15:44:03.640800000
- date-end: 2025-05-30
- time-end: 17:45:11.049400000
- obs_id: C09_011T05_9000006474
- exposure: 1335.13749325
- 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_011T05_9000006474_52313cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52313cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,108,650,240 | 71,173,440 |
| Size | 1.0 GB
| 67.9 MB
|
| Events in quadrant A | 4,085,239 | 668,579 |
| Events in quadrant B | 4,996,190 | 715,398 |
| Events in quadrant C | 15,315,364 | 121,808 |
| Events in quadrant D | 16,079,276 | 143,126 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17172 | 0 |
| B | 0 | 19891 | 0 |
| C | 0 | 50483 | 0 |
| D | 0 | 52725 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7268 | 151 | 2.077600% |
| B | 7268 | 135 | 1.857457% |
| C | 7268 | 6129 | 84.328564% |
| D | 7269 | 5841 | 80.354932% |
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 | 7268 | 7268 | 135 | 135 | 1.86% | 1.86% |  |
| B | 7268 | 7268 | 76 | 76 | 1.05% | 1.05% |  |
| C | 7267 | 7267 | 4897 | 4897 | 67.39% | 67.39% |  |
| D | 7268 | 7268 | 5692 | 5692 | 78.32% | 78.32% |  |
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 | 15 | 174 | 335326 | 1765.57 | 752 | 732 | 189.5 |
| A | 4 | 249 | 245704 | 1292.66 | 752 | 732 | 189.5 |
| A | 12 | 80 | 86954 | 454.97 | 752 | 732 | 189.5 |
| B | 10 | 254 | 738290 | 4667.77 | 740 | 715 | 158.0 |
| B | 4 | 171 | 380562 | 2403.88 | 740 | 715 | 158.0 |
| B | 0 | 216 | 340919 | 2153.0 | 740 | 715 | 158.0 |
| C | 15 | 178 | 5948203 | 73170.64 | 290 | 288 | 81.3 |
| C | 0 | 161 | 3433476 | 42234.73 | 290 | 288 | 81.3 |
| C | 15 | 224 | 2954183 | 36338.51 | 290 | 288 | 81.3 |
| D | 15 | 93 | 11380883 | 108092.35 | 363 | 345 | 105.3 |
| D | 12 | 2 | 892692 | 8475.51 | 363 | 345 | 105.3 |
| D | 8 | 176 | 700509 | 6650.16 | 363 | 345 | 105.3 |
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 |  |