Observation information
- date-obs: 2025-06-23
- time-obs: 03:44:20.151800000
- date-end: 2025-06-23
- time-end: 05:42:53.136400000
- obs_id: C09_011T07_9000006480
- exposure: 430.001625597
- 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_9000006480_52662cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52662cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,218,931,200 | 65,289,600 |
| Size | 1.1 GB
| 62.3 MB
|
| Events in quadrant A | 5,484,216 | 644,543 |
| Events in quadrant B | 7,473,965 | 638,620 |
| Events in quadrant C | 17,353,915 | 36,530 |
| Events in quadrant D | 14,260,428 | 161,550 |
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 | 21386 | 0 |
| B | 0 | 27232 | 0 |
| C | 0 | 56410 | 0 |
| D | 0 | 47290 | 5 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7114 | 234 | 3.289289% |
| B | 7114 | 842 | 11.835817% |
| C | 7114 | 6778 | 95.276919% |
| D | 7113 | 5136 | 72.205820% |
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 | 7114 | 7114 | 217 | 217 | 3.05% | 3.05% |  |
| B | 7113 | 7113 | 662 | 662 | 9.31% | 9.31% |  |
| C | 7113 | 7113 | 6520 | 6520 | 91.66% | 91.66% |  |
| D | 7112 | 7112 | 4538 | 4538 | 63.81% | 63.81% |  |
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 | 14 | 1687289 | 9488.03 | 712 | 697 | 177.8 |
| A | 8 | 249 | 313423 | 1759.26 | 712 | 697 | 177.8 |
| A | 15 | 174 | 276987 | 1554.29 | 712 | 697 | 177.8 |
| B | 10 | 128 | 2534603 | 17028.81 | 692 | 667 | 148.8 |
| B | 12 | 32 | 653780 | 4389.11 | 692 | 667 | 148.8 |
| B | 10 | 254 | 466926 | 3133.4 | 692 | 667 | 148.8 |
| C | 15 | 233 | 8822446 | 167975.47 | 185 | 183 | 52.5 |
| C | 15 | 224 | 7074599 | 134696.55 | 185 | 183 | 52.5 |
| C | 15 | 248 | 163105 | 3102.03 | 185 | 183 | 52.5 |
| D | 12 | 3 | 11802670 | 142468.65 | 267 | 253 | 82.8 |
| D | 8 | 176 | 865857 | 10448.83 | 267 | 253 | 82.8 |
| D | 1 | 7 | 241229 | 2908.86 | 267 | 253 | 82.8 |
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 |  |