Observation information
- date-obs: 2025-06-22
- time-obs: 11:48:35.285400000
- date-end: 2025-06-22
- time-end: 14:08:06.265200000
- obs_id: C09_011T07_9000006480
- exposure: 5507.36562711
- 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_52652cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52652cztM0_level2_quad_clean.evt
|
| Size (bytes) | 798,085,440 | 89,665,920 |
| Size | 761.1 MB
| 85.5 MB
|
| Events in quadrant A | 3,896,318 | 652,366 |
| Events in quadrant B | 7,241,581 | 615,032 |
| Events in quadrant C | 8,683,063 | 488,215 |
| Events in quadrant D | 9,176,488 | 467,539 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16259 | 2 |
| B | 0 | 26416 | 2 |
| C | 0 | 30695 | 2 |
| D | 0 | 32218 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7050 | 151 | 2.141844% |
| B | 7050 | 1095 | 15.531915% |
| C | 7050 | 1768 | 25.078014% |
| D | 7050 | 1783 | 25.290780% |
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 | 7910 | 7050 | 60 | 60 | 0.76% | 0.85% |  |
| B | 7909 | 7049 | 748 | 748 | 9.46% | 10.61% |  |
| C | 7909 | 7049 | 1345 | 1345 | 17.01% | 19.08% |  |
| D | 7909 | 7049 | 1614 | 1614 | 20.41% | 22.90% |  |
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 | 11 | 7 | 181630 | 967.96 | 739 | 721 | 186.9 |
| A | 3 | 14 | 166654 | 887.83 | 739 | 721 | 186.9 |
| A | 5 | 240 | 107342 | 570.48 | 739 | 721 | 186.9 |
| B | 10 | 128 | 2252184 | 15295.81 | 699 | 675 | 147.2 |
| B | 10 | 254 | 860592 | 5841.91 | 699 | 675 | 147.2 |
| B | 12 | 32 | 215596 | 1460.08 | 699 | 675 | 147.2 |
| C | 15 | 158 | 4252887 | 23815.34 | 642 | 637 | 178.6 |
| C | 15 | 233 | 559972 | 3132.64 | 642 | 637 | 178.6 |
| C | 13 | 3 | 353803 | 1977.96 | 642 | 637 | 178.6 |
| D | 8 | 176 | 3453956 | 18700.12 | 642 | 615 | 184.7 |
| D | 1 | 7 | 913024 | 4940.77 | 642 | 615 | 184.7 |
| D | 12 | 3 | 594425 | 3215.53 | 642 | 615 | 184.7 |
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 |  |