Observation information
- date-obs: 2025-06-17
- time-obs: 02:01:50.310200000
- date-end: 2025-06-17
- time-end: 03:58:54.294600000
- obs_id: C09_011T06_9000006478
- exposure: 2852.51349056
- 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_52572cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52572cztM0_level2_quad_clean.evt
|
| Size (bytes) | 771,491,520 | 76,049,280 |
| Size | 735.8 MB
| 72.5 MB
|
| Events in quadrant A | 3,455,511 | 555,709 |
| Events in quadrant B | 6,954,274 | 582,313 |
| Events in quadrant C | 5,461,213 | 500,965 |
| Events in quadrant D | 12,211,646 | 233,253 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15124 | 2 |
| B | 0 | 24891 | 2 |
| C | 0 | 20577 | 2 |
| D | 0 | 40491 | 2 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6150 | 236 | 3.837398% |
| B | 6150 | 486 | 7.902439% |
| C | 6150 | 611 | 9.934959% |
| D | 6150 | 3559 | 57.869919% |
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 | 7025 | 6152 | 191 | 191 | 2.72% | 3.10% |  |
| B | 7025 | 6151 | 347 | 347 | 4.94% | 5.64% |  |
| C | 7025 | 6152 | 562 | 562 | 8.00% | 9.14% |  |
| D | 7025 | 6150 | 3615 | 3615 | 51.46% | 58.78% |  |
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 | 13 | 248 | 438531 | 2832.16 | 613 | 598 | 154.6 |
| A | 5 | 243 | 193653 | 1248.51 | 613 | 598 | 154.6 |
| A | 4 | 249 | 179503 | 1157.0 | 613 | 598 | 154.6 |
| B | 10 | 254 | 3434588 | 26860.65 | 602 | 581 | 127.8 |
| B | 10 | 44 | 318127 | 2483.83 | 602 | 581 | 127.8 |
| B | 4 | 81 | 167736 | 1307.48 | 602 | 581 | 127.8 |
| C | 15 | 248 | 1737352 | 10883.78 | 577 | 571 | 159.6 |
| C | 13 | 3 | 1171928 | 7340.47 | 577 | 571 | 159.6 |
| C | 12 | 249 | 157987 | 986.47 | 577 | 571 | 159.6 |
| D | 2 | 62 | 5532959 | 43209.47 | 434 | 414 | 128.0 |
| D | 6 | 42 | 3357135 | 26216.17 | 434 | 414 | 128.0 |
| D | 15 | 125 | 475344 | 3709.23 | 434 | 414 | 128.0 |
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 |  |