Observation information
- date-obs: 2025-05-16
- time-obs: 20:03:42.768900000
- date-end: 2025-05-16
- time-end: 22:17:36.750000000
- obs_id: C09_011T07_9000006470
- exposure: 73.7392096519
- 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_9000006470_52108cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52108cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,147,547,520 | 68,506,560 |
| Size | 1.1 GB
| 65.3 MB
|
| Events in quadrant A | 3,735,168 | 668,064 |
| Events in quadrant B | 10,932,615 | 457,402 |
| Events in quadrant C | 9,640,016 | 448,584 |
| Events in quadrant D | 17,623,283 | 6,368 |
Level1 data integrity
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16285 | 2 |
| B | 0 | 37366 | 2 |
| C | 0 | 33658 | 2 |
| D | 0 | 57155 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7083 | 115 | 1.623606% |
| B | 7083 | 2933 | 41.409007% |
| C | 7083 | 2452 | 34.618100% |
| D | 7082 | 7031 | 99.279864% |
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 | 7683 | 7084 | 84 | 84 | 1.09% | 1.19% |  |
| B | 7683 | 7084 | 2204 | 2204 | 28.69% | 31.11% |  |
| C | 7683 | 7084 | 1798 | 1798 | 23.40% | 25.38% |  |
| D | 7682 | 7083 | 6444 | 6444 | 83.88% | 90.98% |  |
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 | 8 | 43 | 340179 | 1814.11 | 742 | 723 | 187.1 |
| A | 4 | 3 | 149015 | 792.5 | 742 | 723 | 187.1 |
| A | 5 | 240 | 96227 | 510.39 | 742 | 723 | 187.1 |
| B | 8 | 3 | 6724680 | 51096.5 | 612 | 591 | 131.6 |
| B | 12 | 32 | 565182 | 4290.34 | 612 | 591 | 131.6 |
| B | 10 | 44 | 197692 | 1497.77 | 612 | 591 | 131.6 |
| C | 15 | 224 | 5834809 | 35338.22 | 592 | 585 | 165.1 |
| C | 5 | 80 | 298015 | 1801.55 | 592 | 585 | 165.1 |
| C | 15 | 192 | 232306 | 1403.54 | 592 | 585 | 165.1 |
| D | 6 | 42 | 13860366 | 217430.34 | 216 | 205 | 63.7 |
| D | 15 | 94 | 2185910 | 34288.1 | 216 | 205 | 63.7 |
| D | 8 | 176 | 287701 | 4510.07 | 216 | 205 | 63.7 |
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 |  |