Observation information
- date-obs: 2025-06-14
- time-obs: 16:39:18.766100000
- date-end: 2025-06-14
- time-end: 18:40:46.750200000
- obs_id: C09_011T06_9000006478
- exposure: 3564.47940159
- 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_52536cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52536cztM0_level2_quad_clean.evt
|
| Size (bytes) | 708,505,920 | 84,067,200 |
| Size | 675.7 MB
| 80.2 MB
|
| Events in quadrant A | 3,233,574 | 639,151 |
| Events in quadrant B | 4,337,242 | 628,492 |
| Events in quadrant C | 6,445,006 | 508,684 |
| Events in quadrant D | 11,714,059 | 321,644 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14371 | 1 |
| B | 0 | 17166 | 1 |
| C | 0 | 23637 | 1 |
| D | 0 | 39262 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6408 | 67 | 1.045568% |
| B | 6409 | 407 | 6.350445% |
| C | 6409 | 1039 | 16.211577% |
| D | 6409 | 3196 | 49.867374% |
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 | 7288 | 6409 | 30 | 30 | 0.41% | 0.47% |  |
| B | 7289 | 6410 | 264 | 264 | 3.62% | 4.12% |  |
| C | 7289 | 6410 | 765 | 765 | 10.50% | 11.93% |  |
| D | 7289 | 6410 | 2838 | 2838 | 38.94% | 44.27% |  |
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 | 46 | 90250 | 517.73 | 683 | 667 | 173.0 |
| A | 15 | 174 | 88549 | 507.9 | 683 | 667 | 173.0 |
| A | 5 | 243 | 66249 | 379.02 | 683 | 667 | 173.0 |
| B | 10 | 44 | 726392 | 5183.26 | 653 | 630 | 140.0 |
| B | 4 | 216 | 233030 | 1659.76 | 653 | 630 | 140.0 |
| B | 4 | 21 | 145530 | 1034.85 | 653 | 630 | 140.0 |
| C | 12 | 254 | 1711222 | 9902.83 | 615 | 607 | 172.7 |
| C | 15 | 224 | 705260 | 4079.27 | 615 | 607 | 172.7 |
| C | 15 | 248 | 574038 | 3319.62 | 615 | 607 | 172.7 |
| D | 6 | 42 | 3409172 | 22868.96 | 515 | 492 | 149.1 |
| D | 8 | 176 | 2011359 | 13490.98 | 515 | 492 | 149.1 |
| D | 11 | 176 | 1435341 | 9626.45 | 515 | 492 | 149.1 |
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 |  |