Observation information
- date-obs: 2025-06-19
- time-obs: 21:25:15.788500000
- date-end: 2025-06-19
- time-end: 23:33:59.763900000
- obs_id: C09_011T06_9000006478
- exposure: 491.789271355
- 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_52614cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52614cztM0_level2_quad_clean.evt
|
| Size (bytes) | 942,589,440 | 69,503,040 |
| Size | 898.9 MB
| 66.3 MB
|
| Events in quadrant A | 3,350,274 | 608,808 |
| Events in quadrant B | 9,097,117 | 515,585 |
| Events in quadrant C | 15,077,281 | 46,627 |
| Events in quadrant D | 6,876,655 | 490,850 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14676 | 2 |
| B | 0 | 31492 | 2 |
| C | 0 | 49086 | 2 |
| D | 0 | 24927 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 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 | 6341 | 122 | 1.923987% |
| B | 6341 | 1694 | 26.715029% |
| C | 6341 | 5921 | 93.376439% |
| D | 6341 | 945 | 14.903012% |
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 | 7506 | 6342 | 90 | 90 | 1.20% | 1.42% |  |
| B | 7506 | 6342 | 1336 | 1336 | 17.80% | 21.07% |  |
| C | 7506 | 6342 | 4874 | 4874 | 64.93% | 76.85% |  |
| D | 7506 | 6342 | 817 | 817 | 10.88% | 12.88% |  |
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 | 14 | 254 | 206868 | 1264.55 | 653 | 637 | 163.1 |
| A | 4 | 249 | 181988 | 1111.99 | 653 | 637 | 163.1 |
| A | 7 | 243 | 73259 | 445.3 | 653 | 637 | 163.1 |
| B | 10 | 128 | 3823971 | 30057.92 | 603 | 582 | 127.2 |
| B | 10 | 254 | 1788571 | 14056.44 | 603 | 582 | 127.2 |
| B | 10 | 44 | 465524 | 3655.18 | 603 | 582 | 127.2 |
| C | 15 | 248 | 14192136 | 299643.68 | 167 | 165 | 47.4 |
| C | 1 | 44 | 55687 | 1172.27 | 167 | 165 | 47.4 |
| C | 12 | 249 | 54055 | 1137.81 | 167 | 165 | 47.4 |
| D | 8 | 176 | 1434166 | 8144.63 | 602 | 573 | 176.0 |
| D | 2 | 62 | 589518 | 3345.96 | 602 | 573 | 176.0 |
| D | 11 | 176 | 472825 | 2682.99 | 602 | 573 | 176.0 |
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 |  |