Observation information
- date-obs: 2025-06-18
- time-obs: 03:48:41.108700000
- date-end: 2025-06-18
- time-end: 05:57:18.092300000
- obs_id: C09_011T06_9000006478
- exposure: 6378.92445469
- 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_52588cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52588cztM0_level2_quad_clean.evt
|
| Size (bytes) | 751,377,600 | 100,782,720 |
| Size | 716.6 MB
| 96.1 MB
|
| Events in quadrant A | 3,917,182 | 702,704 |
| Events in quadrant B | 8,979,093 | 656,724 |
| Events in quadrant C | 5,813,913 | 618,900 |
| Events in quadrant D | 8,511,252 | 541,227 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17576 | 1 |
| B | 0 | 32032 | 1 |
| C | 0 | 22879 | 1 |
| D | 0 | 30686 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7647 | 201 | 2.628482% |
| B | 7648 | 1431 | 18.710774% |
| C | 7648 | 733 | 9.584205% |
| D | 7647 | 1438 | 18.804760% |
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 | 7717 | 7648 | 139 | 139 | 1.80% | 1.82% |  |
| B | 7718 | 7648 | 1072 | 1072 | 13.89% | 14.02% |  |
| C | 7718 | 7649 | 703 | 703 | 9.11% | 9.19% |  |
| D | 7717 | 7648 | 1369 | 1369 | 17.74% | 17.90% |  |
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 | 271171 | 1366.7 | 794 | 773 | 197.8 |
| A | 8 | 249 | 228306 | 1150.04 | 794 | 773 | 197.8 |
| A | 7 | 190 | 109897 | 551.56 | 794 | 773 | 197.8 |
| B | 10 | 254 | 4225858 | 26093.18 | 760 | 734 | 161.9 |
| B | 10 | 44 | 545677 | 3365.42 | 760 | 734 | 161.9 |
| B | 10 | 128 | 426266 | 2627.97 | 760 | 734 | 161.9 |
| C | 13 | 3 | 1904913 | 9447.02 | 727 | 720 | 201.6 |
| C | 15 | 248 | 306666 | 1517.85 | 727 | 720 | 201.6 |
| C | 15 | 224 | 263865 | 1305.51 | 727 | 720 | 201.6 |
| D | 15 | 125 | 3048992 | 15130.49 | 703 | 669 | 201.5 |
| D | 8 | 176 | 1027587 | 5097.15 | 703 | 669 | 201.5 |
| D | 2 | 62 | 669588 | 3320.21 | 703 | 669 | 201.5 |
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 |  |