Observation information
- date-obs: 2025-06-15
- time-obs: 20:08:36.543000000
- date-end: 2025-06-15
- time-end: 22:25:08.524800000
- obs_id: C09_011T06_9000006478
- exposure: 1354.28928733
- 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_52554cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52554cztM0_level2_quad_clean.evt
|
| Size (bytes) | 869,290,560 | 76,916,160 |
| Size | 829.0 MB
| 73.4 MB
|
| Events in quadrant A | 4,102,839 | 611,220 |
| Events in quadrant B | 6,068,069 | 613,784 |
| Events in quadrant C | 6,798,981 | 525,028 |
| Events in quadrant D | 14,714,703 | 133,998 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16734 | 2 |
| B | 0 | 22518 | 2 |
| C | 0 | 24752 | 2 |
| D | 0 | 48135 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 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 | 6378 | 321 | 5.032926% |
| B | 6378 | 666 | 10.442145% |
| C | 6378 | 998 | 15.647538% |
| D | 6377 | 5205 | 81.621452% |
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 | 7558 | 6379 | 202 | 202 | 2.67% | 3.17% |  |
| B | 7558 | 6379 | 360 | 360 | 4.76% | 5.64% |  |
| C | 7558 | 6379 | 785 | 785 | 10.39% | 12.31% |  |
| D | 7557 | 6377 | 4800 | 4800 | 63.52% | 75.27% |  |
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 | 3 | 14 | 738018 | 4394.2 | 664 | 649 | 167.8 |
| A | 4 | 239 | 256185 | 1522.81 | 664 | 649 | 167.8 |
| A | 15 | 174 | 76298 | 450.81 | 664 | 649 | 167.8 |
| B | 4 | 170 | 1403692 | 10211.84 | 650 | 627 | 137.4 |
| B | 10 | 254 | 1220897 | 8881.41 | 650 | 627 | 137.4 |
| B | 10 | 44 | 294688 | 2140.25 | 650 | 627 | 137.4 |
| C | 15 | 248 | 1670673 | 9757.06 | 615 | 608 | 171.2 |
| C | 15 | 224 | 1051313 | 6138.56 | 615 | 608 | 171.2 |
| C | 13 | 3 | 624405 | 3644.43 | 615 | 608 | 171.2 |
| D | 6 | 42 | 10056117 | 102163.49 | 340 | 323 | 98.4 |
| D | 8 | 176 | 1744022 | 17715.4 | 340 | 323 | 98.4 |
| D | 15 | 142 | 265099 | 2690.04 | 340 | 323 | 98.4 |
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 |  |