Observation information
- date-obs: 2018-11-17
- time-obs: 06:23:04.631600000
- date-end: 2018-11-17
- time-end: 08:27:36.630000000
- obs_id: A05_188T01_9000002520
- exposure: 3978.49884917
- sourceid: Vela Pulsar
- observer: Marion
- ra_pnt: 128.8361
- dec_pnt: -45.17643
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_188T01_9000002520_16965cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002520_16965cztM0_level2_quad_clean.evt
|
| Size (bytes) | 606,061,440 | 89,490,240 |
| Size | 578.0 MB
| 85.3 MB
|
| Events in quadrant A | 3,135,120 | 609,314 |
| Events in quadrant B | 7,094,188 | 496,080 |
| Events in quadrant C | 3,292,295 | 603,626 |
| Events in quadrant D | 4,410,757 | 565,148 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13002 | 1 |
| B | 0 | 25160 | 1 |
| C | 0 | 13238 | 1 |
| D | 0 | 17033 | 1 |
| 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 | 6227 | 50 | 0.802955% |
| B | 6227 | 1573 | 25.260960% |
| C | 6227 | 82 | 1.316846% |
| D | 6228 | 368 | 5.908799% |
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 | 7473 | 6229 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7473 | 6229 | 1238 | 1238 | 16.57% | 19.87% |  |
| C | 7473 | 6229 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7474 | 6230 | 287 | 287 | 3.84% | 4.61% |  |
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 | 55462 | 344.96 | 795 | 780 | 158.5 |
| A | 12 | 189 | 24948 | 152.47 | 795 | 780 | 158.5 |
| A | 0 | 226 | 6970 | 39.05 | 795 | 780 | 158.5 |
| B | 3 | 64 | 4175639 | 32096.36 | 697 | 682 | 130.1 |
| B | 15 | 35 | 61597 | 468.3 | 697 | 682 | 130.1 |
| B | 0 | 197 | 35720 | 269.37 | 697 | 682 | 130.1 |
| C | 3 | 233 | 126361 | 693.81 | 780 | 787 | 181.0 |
| C | 14 | 238 | 120376 | 660.74 | 780 | 787 | 181.0 |
| C | 13 | 61 | 5693 | 27.11 | 780 | 787 | 181.0 |
| D | 1 | 52 | 1236661 | 6633.25 | 769 | 748 | 186.3 |
| D | 11 | 129 | 133032 | 709.98 | 769 | 748 | 186.3 |
| D | 10 | 70 | 61940 | 328.42 | 769 | 748 | 186.3 |
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 |  |