Observation information
- date-obs: 2017-11-04
- time-obs: 17:24:54.685300000
- date-end: 2017-11-04
- time-end: 19:33:15.687600000
- obs_id: A04_022T02_9000001662
- exposure: 4404.95856325
- sourceid: M31 Field No. 8
- observer: dleahy
- ra_pnt: 11.36333
- dec_pnt: 41.88303
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_022T02_9000001662_11377cztM0_level2.evt
| modeM0/AS1A04_022T02_9000001662_11377cztM0_level2_quad_clean.evt
|
| Size (bytes) | 556,197,120 | 98,501,760 |
| Size | 530.4 MB
| 93.9 MB
|
| Events in quadrant A | 4,787,866 | 620,563 |
| Events in quadrant B | 4,369,067 | 624,851 |
| Events in quadrant C | 3,068,029 | 682,561 |
| Events in quadrant D | 4,199,145 | 621,601 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18474 | 3 |
| B | 0 | 17056 | 2 |
| C | 0 | 13055 | 2 |
| D | 0 | 16704 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6209 | 254 | 4.090836% |
| B | 6209 | 380 | 6.120148% |
| C | 6209 | 69 | 1.111290% |
| D | 6209 | 274 | 4.412949% |
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 | 7494 | 6210 | 132 | 132 | 1.76% | 2.13% |  |
| B | 7494 | 6210 | 197 | 197 | 2.63% | 3.17% |  |
| C | 7494 | 6210 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7494 | 6210 | 169 | 169 | 2.26% | 2.72% |  |
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 | 15 | 174 | 1023976 | 6575.28 | 778 | 764 | 155.6 |
| A | 8 | 5 | 727300 | 4668.81 | 778 | 764 | 155.6 |
| A | 8 | 15 | 21866 | 135.6 | 778 | 764 | 155.6 |
| B | 4 | 239 | 1143902 | 8048.94 | 768 | 752 | 142.0 |
| B | 3 | 64 | 128211 | 897.44 | 768 | 752 | 142.0 |
| B | 0 | 229 | 24017 | 163.81 | 768 | 752 | 142.0 |
| C | 13 | 61 | 5608 | 26.3 | 786 | 790 | 183.2 |
| C | 14 | 234 | 3302 | 13.71 | 786 | 790 | 183.2 |
| C | 3 | 202 | 1988 | 6.54 | 786 | 790 | 183.2 |
| D | 1 | 52 | 436951 | 2336.92 | 761 | 745 | 186.7 |
| D | 10 | 253 | 374972 | 2004.88 | 761 | 745 | 186.7 |
| D | 14 | 34 | 176999 | 944.26 | 761 | 745 | 186.7 |
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 |  |