Observation information
- date-obs: 2025-05-17
- time-obs: 18:44:42.576500000
- date-end: 2025-05-17
- time-end: 20:51:43.560100000
- obs_id: C09_011T07_9000006470
- exposure: 8.51135969162
- 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_52122cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52122cztM0_level2_quad_clean.evt
|
| Size (bytes) | 986,526,720 | 74,551,680 |
| Size | 940.8 MB
| 71.1 MB
|
| Events in quadrant A | 4,319,769 | 641,401 |
| Events in quadrant B | 3,927,462 | 691,315 |
| Events in quadrant C | 9,937,186 | 451,558 |
| Events in quadrant D | 17,809,874 | 790 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17576 | 1 |
| B | 0 | 16436 | 1 |
| C | 0 | 34186 | 1 |
| D | 0 | 57443 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6766 | 247 | 3.650606% |
| B | 6767 | 140 | 2.068864% |
| C | 6767 | 2324 | 34.343136% |
| D | 6766 | 6761 | 99.926101% |
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 | 7621 | 6767 | 185 | 185 | 2.43% | 2.73% |  |
| B | 7622 | 6768 | 90 | 90 | 1.18% | 1.33% |  |
| C | 7622 | 6767 | 1805 | 1805 | 23.68% | 26.67% |  |
| D | 7620 | 6765 | 6505 | 6505 | 85.37% | 96.16% |  |
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 | 249 | 758807 | 4304.98 | 702 | 685 | 176.1 |
| A | 4 | 3 | 228387 | 1293.0 | 702 | 685 | 176.1 |
| A | 6 | 162 | 185396 | 1048.88 | 702 | 685 | 176.1 |
| B | 4 | 171 | 236361 | 1587.08 | 702 | 680 | 148.5 |
| B | 0 | 171 | 148390 | 994.68 | 702 | 680 | 148.5 |
| B | 4 | 81 | 98164 | 656.46 | 702 | 680 | 148.5 |
| C | 15 | 224 | 5888970 | 35448.72 | 597 | 591 | 166.1 |
| C | 15 | 193 | 503547 | 3027.85 | 597 | 591 | 166.1 |
| C | 13 | 3 | 229340 | 1377.1 | 597 | 591 | 166.1 |
| D | 15 | 94 | 12628213 | 291904.09 | 143 | 136 | 43.3 |
| D | 6 | 42 | 3844510 | 88864.56 | 143 | 136 | 43.3 |
| D | 0 | 18 | 337743 | 7803.95 | 143 | 136 | 43.3 |
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 |  |