Observation information
- date-obs: 2021-01-18
- time-obs: 05:56:15.268300000
- date-end: 2021-01-18
- time-end: 08:06:49.025900000
- obs_id: A10_021T08_9000004118
- exposure: 3960.70165469
- sourceid: NGC 4689
- observer: rosolowsky
- ra_pnt: 191.8
- dec_pnt: 13.90036
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_021T08_9000004118_28703cztM0_level2.evt
| modeM0/AS1A10_021T08_9000004118_28703cztM0_level2_quad_clean.evt
|
| Size (bytes) | 573,160,320 | 103,982,400 |
| Size | 546.6 MB
| 99.2 MB
|
| Events in quadrant A | 3,450,449 | 692,576 |
| Events in quadrant B | 3,438,829 | 705,286 |
| Events in quadrant C | 3,503,464 | 672,277 |
| Events in quadrant D | 6,540,813 | 641,415 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13799 | 2 |
| B | 0 | 13792 | 2 |
| C | 0 | 14074 | 2 |
| D | 0 | 23827 | 2 |
| 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 | 6265 | 98 | 1.564246% |
| B | 6265 | 119 | 1.899441% |
| C | 6265 | 172 | 2.745411% |
| D | 6265 | 1015 | 16.201117% |
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 | 7550 | 6265 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7550 | 6265 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7550 | 6265 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7550 | 6265 | 899 | 899 | 11.91% | 14.35% |  |
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 | 13 | 254 | 11358 | 59.54 | 892 | 876 | 176.0 |
| A | 0 | 226 | 7771 | 39.17 | 892 | 876 | 176.0 |
| A | 3 | 137 | 7612 | 38.26 | 892 | 876 | 176.0 |
| B | 12 | 111 | 19436 | 113.88 | 871 | 851 | 163.2 |
| B | 11 | 111 | 17789 | 103.79 | 871 | 851 | 163.2 |
| B | 14 | 111 | 16924 | 98.49 | 871 | 851 | 163.2 |
| C | 14 | 238 | 150950 | 766.88 | 850 | 860 | 195.7 |
| C | 14 | 254 | 18428 | 89.76 | 850 | 860 | 195.7 |
| C | 10 | 22 | 12246 | 58.18 | 850 | 860 | 195.7 |
| D | 1 | 52 | 2532014 | 13379.53 | 806 | 790 | 189.2 |
| D | 7 | 80 | 434859 | 2294.4 | 806 | 790 | 189.2 |
| D | 8 | 195 | 249369 | 1313.94 | 806 | 790 | 189.2 |
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 |  |