Observation information
- date-obs: 2025-06-15
- time-obs: 18:31:56.556300000
- date-end: 2025-06-15
- time-end: 20:41:27.539100000
- obs_id: C09_011T06_9000006478
- exposure: 1750.81287426
- 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_52553cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52553cztM0_level2_quad_clean.evt
|
| Size (bytes) | 899,674,560 | 76,086,720 |
| Size | 858.0 MB
| 72.6 MB
|
| Events in quadrant A | 3,656,876 | 621,394 |
| Events in quadrant B | 6,477,115 | 587,192 |
| Events in quadrant C | 8,173,705 | 471,559 |
| Events in quadrant D | 14,491,600 | 169,010 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15670 | 2 |
| B | 0 | 23747 | 3 |
| C | 0 | 28864 | 2 |
| D | 0 | 47484 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6512 | 255 | 3.915848% |
| B | 6511 | 998 | 15.327907% |
| C | 6511 | 1636 | 25.126709% |
| D | 6511 | 4986 | 76.578099% |
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 | 7592 | 6513 | 140 | 140 | 1.84% | 2.15% |  |
| B | 7591 | 6512 | 583 | 583 | 7.68% | 8.95% |  |
| C | 7591 | 6512 | 1382 | 1382 | 18.21% | 21.22% |  |
| D | 7590 | 6510 | 4513 | 4513 | 59.46% | 69.32% |  |
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 | 4 | 249 | 573991 | 3349.6 | 682 | 665 | 171.2 |
| A | 3 | 14 | 170416 | 991.75 | 682 | 665 | 171.2 |
| A | 4 | 3 | 35735 | 204.89 | 682 | 665 | 171.2 |
| B | 4 | 170 | 1874200 | 13570.61 | 650 | 629 | 138.1 |
| B | 10 | 44 | 1334048 | 9658.19 | 650 | 629 | 138.1 |
| B | 10 | 254 | 200289 | 1446.17 | 650 | 629 | 138.1 |
| C | 15 | 248 | 2907240 | 17741.56 | 591 | 586 | 163.8 |
| C | 4 | 5 | 826693 | 5042.37 | 591 | 586 | 163.8 |
| C | 14 | 254 | 509130 | 3104.04 | 591 | 586 | 163.8 |
| D | 6 | 42 | 10106227 | 85915.44 | 403 | 384 | 117.6 |
| D | 8 | 176 | 714225 | 6068.76 | 403 | 384 | 117.6 |
| D | 11 | 176 | 542161 | 4605.95 | 403 | 384 | 117.6 |
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 |  |