Observation information
- date-obs: 2025-06-18
- time-obs: 17:51:01.025500000
- date-end: 2025-06-18
- time-end: 19:49:55.987000000
- obs_id: C09_011T06_9000006478
- exposure: 1795.42359507
- 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_52597cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52597cztM0_level2_quad_clean.evt
|
| Size (bytes) | 949,962,240 | 64,584,000 |
| Size | 906.0 MB
| 61.6 MB
|
| Events in quadrant A | 3,273,629 | 582,214 |
| Events in quadrant B | 8,441,596 | 484,933 |
| Events in quadrant C | 12,903,819 | 173,755 |
| Events in quadrant D | 10,080,765 | 294,138 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14155 | 1 |
| B | 0 | 29239 | 1 |
| C | 0 | 42377 | 1 |
| D | 0 | 34097 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6015 | 140 | 2.327515% |
| B | 6015 | 1665 | 27.680798% |
| C | 6015 | 4350 | 72.319202% |
| D | 6016 | 2832 | 47.074468% |
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 | 7134 | 6015 | 113 | 113 | 1.58% | 1.88% |  |
| B | 7134 | 6015 | 1653 | 1653 | 23.17% | 27.48% |  |
| C | 7134 | 6015 | 4146 | 4146 | 58.12% | 68.93% |  |
| D | 7135 | 6016 | 2856 | 2856 | 40.03% | 47.47% |  |
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 | 4 | 249 | 351675 | 2212.98 | 627 | 611 | 158.6 |
| A | 3 | 114 | 77905 | 487.23 | 627 | 611 | 158.6 |
| A | 5 | 243 | 77756 | 486.29 | 627 | 611 | 158.6 |
| B | 10 | 254 | 3432708 | 28119.31 | 575 | 557 | 122.1 |
| B | 10 | 128 | 1020814 | 8358.88 | 575 | 557 | 122.1 |
| B | 10 | 44 | 437607 | 3580.71 | 575 | 557 | 122.1 |
| C | 15 | 248 | 10626292 | 121398.57 | 314 | 312 | 87.5 |
| C | 15 | 233 | 848983 | 9695.81 | 314 | 312 | 87.5 |
| C | 12 | 254 | 80726 | 918.71 | 314 | 312 | 87.5 |
| D | 15 | 125 | 2070453 | 15752.69 | 459 | 439 | 131.4 |
| D | 8 | 176 | 1937824 | 14743.39 | 459 | 439 | 131.4 |
| D | 12 | 1 | 1756942 | 13366.89 | 459 | 439 | 131.4 |
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 |  |