Observation information
- date-obs: 2025-05-19
- time-obs: 00:03:34.336000000
- date-end: 2025-05-19
- time-end: 02:01:00.320200000
- obs_id: C09_011T07_9000006470
- exposure: 2966.97132069
- 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_011T07_9000006470_52140cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52140cztM0_level2_quad_clean.evt
|
| Size (bytes) | 885,600,000 | 86,472,000 |
| Size | 844.6 MB
| 82.5 MB
|
| Events in quadrant A | 4,603,944 | 647,325 |
| Events in quadrant B | 5,461,545 | 694,297 |
| Events in quadrant C | 7,961,785 | 537,723 |
| Events in quadrant D | 14,210,760 | 247,741 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18820 | 25 |
| B | 0 | 21197 | 12 |
| C | 0 | 28615 | 35 |
| D | 0 | 47130 | 74 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7039 | 258 | 3.665293% |
| B | 7042 | 332 | 4.714570% |
| C | 7040 | 1404 | 19.943182% |
| D | 7036 | 4333 | 61.583286% |
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 | 7039 | 7039 | 166 | 166 | 2.36% | 2.36% |  |
| B | 7042 | 7042 | 199 | 199 | 2.83% | 2.83% |  |
| C | 7040 | 7040 | 994 | 994 | 14.12% | 14.12% |  |
| D | 7038 | 7038 | 4215 | 4215 | 59.89% | 59.89% |  |
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 | 3 | 114 | 815858 | 4381.93 | 749 | 729 | 186.0 |
| A | 7 | 206 | 176852 | 946.79 | 749 | 729 | 186.0 |
| A | 14 | 254 | 139644 | 746.77 | 749 | 729 | 186.0 |
| B | 5 | 172 | 1119467 | 6927.91 | 749 | 721 | 161.5 |
| B | 5 | 185 | 444246 | 2746.56 | 749 | 721 | 161.5 |
| B | 4 | 81 | 209670 | 1293.93 | 749 | 721 | 161.5 |
| C | 15 | 224 | 3077029 | 16217.34 | 686 | 679 | 189.7 |
| C | 15 | 158 | 384660 | 2024.2 | 686 | 679 | 189.7 |
| C | 15 | 209 | 315029 | 1657.13 | 686 | 679 | 189.7 |
| D | 6 | 42 | 7757037 | 54131.35 | 500 | 479 | 143.3 |
| D | 15 | 94 | 1096173 | 7646.61 | 500 | 479 | 143.3 |
| D | 12 | 3 | 723626 | 5046.69 | 500 | 479 | 143.3 |
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 |  |