Observation information
- date-obs: 2025-05-19
- time-obs: 17:39:34.191700000
- date-end: 2025-05-19
- time-end: 19:43:36.176300000
- obs_id: C09_011T07_9000006470
- exposure: 4679.49422729
- 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_011T07_9000006470_52151cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52151cztM0_level2_quad_clean.evt
|
| Size (bytes) | 846,221,760 | 82,825,920 |
| Size | 807.0 MB
| 79.0 MB
|
| Events in quadrant A | 4,128,487 | 613,870 |
| Events in quadrant B | 6,845,720 | 585,693 |
| Events in quadrant C | 9,267,200 | 443,358 |
| Events in quadrant D | 10,574,290 | 404,857 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16855 | 1 |
| B | 0 | 24928 | 1 |
| C | 0 | 32061 | 1 |
| D | 0 | 36009 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6587 | 211 | 3.203279% |
| B | 6587 | 1113 | 16.896918% |
| C | 6588 | 2192 | 33.272617% |
| D | 6588 | 2187 | 33.196721% |
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 | 7442 | 6587 | 140 | 140 | 1.88% | 2.13% |  |
| B | 7442 | 6587 | 813 | 813 | 10.92% | 12.34% |  |
| C | 7442 | 6587 | 1956 | 1956 | 26.28% | 29.69% |  |
| D | 7443 | 6588 | 2244 | 2244 | 30.15% | 34.06% |  |
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 | 477584 | 2754.79 | 681 | 663 | 173.1 |
| A | 4 | 3 | 244177 | 1406.58 | 681 | 663 | 173.1 |
| A | 11 | 3 | 105034 | 602.87 | 681 | 663 | 173.1 |
| B | 12 | 32 | 2055546 | 15489.28 | 640 | 619 | 132.7 |
| B | 4 | 170 | 1498399 | 11289.71 | 640 | 619 | 132.7 |
| B | 4 | 81 | 132105 | 991.09 | 640 | 619 | 132.7 |
| C | 15 | 224 | 4750672 | 29816.12 | 576 | 573 | 159.3 |
| C | 15 | 193 | 1162495 | 7293.32 | 576 | 573 | 159.3 |
| C | 1 | 45 | 260587 | 1632.09 | 576 | 573 | 159.3 |
| D | 6 | 42 | 5158301 | 31129.93 | 582 | 556 | 165.7 |
| D | 15 | 94 | 1925344 | 11617.19 | 582 | 556 | 165.7 |
| D | 12 | 17 | 351575 | 2118.6 | 582 | 556 | 165.7 |
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 |  |