Observation information
- date-obs: 2025-06-23
- time-obs: 14:09:25.675700000
- date-end: 2025-06-23
- time-end: 16:07:04.049900000
- obs_id: C09_011T07_9000006480
- exposure: 4765.08061129
- 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_52669cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52669cztM0_level2_quad_clean.evt
|
| Size (bytes) | 731,540,160 | 80,101,440 |
| Size | 697.7 MB
| 76.4 MB
|
| Events in quadrant A | 5,629,414 | 530,299 |
| Events in quadrant B | 4,953,279 | 598,714 |
| Events in quadrant C | 8,688,962 | 442,706 |
| Events in quadrant D | 7,343,223 | 432,499 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20827 | 1 |
| B | 0 | 18912 | 1 |
| C | 0 | 29986 | 1 |
| D | 0 | 26029 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6019 | 659 | 10.948663% |
| B | 6018 | 298 | 4.951811% |
| C | 6018 | 1513 | 25.141243% |
| D | 6018 | 1258 | 20.903955% |
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 | 7060 | 6019 | 518 | 518 | 7.34% | 8.61% |  |
| B | 7059 | 6018 | 180 | 180 | 2.55% | 2.99% |  |
| C | 7059 | 6018 | 1594 | 1594 | 22.58% | 26.49% |  |
| D | 7058 | 6017 | 1297 | 1297 | 18.38% | 21.56% |  |
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 | 1468980 | 9701.38 | 605 | 593 | 151.4 |
| A | 14 | 254 | 1217799 | 8041.87 | 605 | 593 | 151.4 |
| A | 4 | 249 | 91299 | 599.28 | 605 | 593 | 151.4 |
| B | 10 | 128 | 1571866 | 11998.69 | 618 | 597 | 131.0 |
| B | 5 | 185 | 247126 | 1882.57 | 618 | 597 | 131.0 |
| B | 2 | 249 | 135337 | 1028.92 | 618 | 597 | 131.0 |
| C | 15 | 248 | 5352118 | 34621.43 | 563 | 559 | 154.6 |
| C | 13 | 3 | 709824 | 4588.53 | 563 | 559 | 154.6 |
| C | 15 | 233 | 72450 | 465.09 | 563 | 559 | 154.6 |
| D | 8 | 176 | 2571396 | 15870.14 | 565 | 539 | 162.0 |
| D | 6 | 42 | 1281925 | 7910.12 | 565 | 539 | 162.0 |
| D | 3 | 12 | 381626 | 2352.49 | 565 | 539 | 162.0 |
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 |  |