Observation information
- date-obs: 2019-03-04
- time-obs: 16:06:30.291300000
- date-end: 2019-03-04
- time-end: 18:20:38.293500000
- obs_id: A05_188T01_9000002756
- exposure: 4798.24719237
- 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_9000002756_18555cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002756_18555cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,875,520 | 109,385,280 |
| Size | 447.2 MB
| 104.3 MB
|
| Events in quadrant A | 3,247,679 | 739,383 |
| Events in quadrant B | 3,512,457 | 761,818 |
| Events in quadrant C | 3,159,569 | 695,751 |
| Events in quadrant D | 3,851,156 | 674,793 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13812 | 3 |
| B | 0 | 14489 | 2 |
| C | 0 | 13461 | 2 |
| D | 0 | 15837 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6322 | 32 | 0.506169% |
| B | 6322 | 79 | 1.249605% |
| C | 6322 | 72 | 1.138880% |
| D | 6322 | 123 | 1.945587% |
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 | 7657 | 6323 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7657 | 6323 | 39 | 39 | 0.51% | 0.62% |  |
| C | 7657 | 6323 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7657 | 6323 | 109 | 109 | 1.42% | 1.72% |  |
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 | 0 | 13 | 33553 | 195.37 | 830 | 817 | 167.6 |
| A | 13 | 254 | 11909 | 66.2 | 830 | 817 | 167.6 |
| A | 0 | 226 | 7244 | 38.36 | 830 | 817 | 167.6 |
| B | 3 | 64 | 232859 | 1489.83 | 831 | 813 | 155.8 |
| B | 0 | 190 | 18708 | 114.89 | 831 | 813 | 155.8 |
| B | 12 | 111 | 17606 | 107.82 | 831 | 813 | 155.8 |
| C | 14 | 238 | 125686 | 697.86 | 773 | 778 | 179.0 |
| C | 3 | 233 | 10173 | 52.49 | 773 | 778 | 179.0 |
| C | 9 | 160 | 6846 | 33.9 | 773 | 778 | 179.0 |
| D | 7 | 238 | 542377 | 2871.61 | 779 | 757 | 188.6 |
| D | 10 | 50 | 202491 | 1069.57 | 779 | 757 | 188.6 |
| D | 1 | 52 | 100208 | 527.28 | 779 | 757 | 188.6 |
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 |  |