Observation information
- date-obs: 2025-06-19
- time-obs: 06:01:42.908500000
- date-end: 2025-06-19
- time-end: 08:01:17.894200000
- obs_id: C09_011T06_9000006478
- exposure: 6381.55945277
- 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_011T06_9000006478_52604cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52604cztM0_level2_quad_clean.evt
|
| Size (bytes) | 647,023,680 | 97,312,320 |
| Size | 617.0 MB
| 92.8 MB
|
| Events in quadrant A | 3,725,213 | 652,892 |
| Events in quadrant B | 6,450,229 | 667,865 |
| Events in quadrant C | 5,951,810 | 592,195 |
| Events in quadrant D | 7,267,907 | 533,369 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16400 | 0 |
| B | 0 | 24173 | 0 |
| C | 0 | 22865 | 0 |
| D | 0 | 26684 | 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 | 7175 | 96 | 1.337979% |
| B | 7176 | 594 | 8.277592% |
| C | 7176 | 593 | 8.263657% |
| D | 7176 | 953 | 13.280379% |
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 | 7175 | 7175 | 60 | 60 | 0.84% | 0.84% |  |
| B | 7176 | 7176 | 527 | 527 | 7.34% | 7.34% |  |
| C | 7176 | 7176 | 612 | 612 | 8.53% | 8.53% |  |
| D | 7176 | 7176 | 944 | 944 | 13.15% | 13.15% |  |
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 | 12 | 80 | 208979 | 1129.68 | 733 | 714 | 184.4 |
| A | 3 | 114 | 151383 | 817.26 | 733 | 714 | 184.4 |
| A | 4 | 249 | 113877 | 613.82 | 733 | 714 | 184.4 |
| B | 10 | 128 | 2503113 | 16609.3 | 711 | 686 | 150.7 |
| B | 4 | 81 | 340794 | 2257.39 | 711 | 686 | 150.7 |
| B | 10 | 254 | 192690 | 1274.38 | 711 | 686 | 150.7 |
| C | 15 | 248 | 1598115 | 8371.22 | 688 | 681 | 190.8 |
| C | 4 | 5 | 568693 | 2976.62 | 688 | 681 | 190.8 |
| C | 12 | 252 | 344122 | 1799.77 | 688 | 681 | 190.8 |
| D | 6 | 42 | 1861109 | 9801.05 | 670 | 641 | 189.8 |
| D | 8 | 176 | 772193 | 4064.58 | 670 | 641 | 189.8 |
| D | 12 | 6 | 687486 | 3618.34 | 670 | 641 | 189.8 |
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 |  |