Observation information
- date-obs: 2018-06-21
- time-obs: 02:41:59.655500000
- date-end: 2018-06-21
- time-end: 05:10:15.991800000
- obs_id: A04_022T06_9000002182
- exposure: 5305.55887172
- sourceid: M31 Field No. 12
- observer: dleahy
- ra_pnt: 11.92225
- dec_pnt: 41.85848
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_022T06_9000002182_14757cztM0_level2.evt
| modeM0/AS1A04_022T06_9000002182_14757cztM0_level2_quad_clean.evt
|
| Size (bytes) | 737,256,960 | 100,690,560 |
| Size | 703.1 MB
| 96.0 MB
|
| Events in quadrant A | 10,391,636 | 588,467 |
| Events in quadrant B | 3,948,372 | 653,971 |
| Events in quadrant C | 4,098,984 | 644,731 |
| Events in quadrant D | 3,375,554 | 633,250 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36223 | 3 |
| B | 0 | 16883 | 2 |
| C | 0 | 17162 | 2 |
| D | 0 | 15684 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7602 | 1665 | 21.902131% |
| B | 7602 | 148 | 1.946856% |
| C | 7602 | 49 | 0.644567% |
| D | 7602 | 19 | 0.249934% |
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 | 8898 | 7603 | 1259 | 1259 | 14.15% | 16.56% |  |
| B | 8898 | 7603 | 64 | 64 | 0.72% | 0.84% |  |
| C | 8898 | 7604 | 9 | 9 | 0.10% | 0.12% |  |
| D | 8897 | 7603 | 4 | 4 | 0.04% | 0.05% |  |
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 | 8 | 15 | 6939748 | 40398.92 | 844 | 825 | 171.8 |
| A | 12 | 189 | 180007 | 1043.21 | 844 | 825 | 171.8 |
| A | 0 | 23 | 17227 | 95.49 | 844 | 825 | 171.8 |
| B | 10 | 16 | 295487 | 1710.05 | 898 | 875 | 172.3 |
| B | 4 | 142 | 51368 | 293.08 | 898 | 875 | 172.3 |
| B | 0 | 229 | 26834 | 150.68 | 898 | 875 | 172.3 |
| C | 3 | 233 | 558918 | 2762.21 | 867 | 874 | 202.0 |
| C | 4 | 254 | 141072 | 693.95 | 867 | 874 | 202.0 |
| C | 8 | 128 | 10249 | 46.4 | 867 | 874 | 202.0 |
| D | 2 | 234 | 29070 | 121.77 | 863 | 839 | 231.8 |
| D | 2 | 120 | 28211 | 118.06 | 863 | 839 | 231.8 |
| D | 2 | 152 | 26337 | 109.98 | 863 | 839 | 231.8 |
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 |  |