Observation information
- date-obs: 2018-11-16
- time-obs: 21:23:42.642600000
- date-end: 2018-11-16
- time-end: 23:47:22.639100000
- obs_id: A05_188T01_9000002520
- exposure: 5106.79268563
- 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_16959cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002520_16959cztM0_level2_quad_clean.evt
|
| Size (bytes) | 459,642,240 | 100,540,800 |
| Size | 438.3 MB
| 95.9 MB
|
| Events in quadrant A | 3,074,443 | 651,200 |
| Events in quadrant B | 3,406,654 | 666,254 |
| Events in quadrant C | 3,732,966 | 637,395 |
| Events in quadrant D | 3,253,578 | 625,484 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13585 | 2 |
| B | 0 | 14492 | 2 |
| C | 0 | 15432 | 2 |
| D | 0 | 14161 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6660 | 39 | 0.585586% |
| B | 6661 | 109 | 1.636391% |
| C | 6661 | 92 | 1.381174% |
| D | 6661 | 37 | 0.555472% |
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 | 8621 | 6663 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8622 | 6664 | 9 | 9 | 0.10% | 0.14% |  |
| C | 8622 | 6664 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8622 | 6664 | 6 | 6 | 0.07% | 0.09% |  |
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 | 9 | 143 | 11353 | 65.16 | 795 | 776 | 162.3 |
| A | 0 | 226 | 6980 | 38.22 | 795 | 776 | 162.3 |
| A | 12 | 189 | 6642 | 36.14 | 795 | 776 | 162.3 |
| B | 15 | 35 | 139593 | 900.21 | 803 | 783 | 154.2 |
| B | 3 | 64 | 49273 | 314.47 | 803 | 783 | 154.2 |
| B | 12 | 111 | 18204 | 112.98 | 803 | 783 | 154.2 |
| C | 3 | 233 | 599868 | 3307.13 | 772 | 778 | 181.2 |
| C | 14 | 238 | 120206 | 659.27 | 772 | 778 | 181.2 |
| C | 13 | 61 | 5288 | 24.9 | 772 | 778 | 181.2 |
| D | 1 | 52 | 194544 | 1019.23 | 775 | 752 | 190.1 |
| D | 7 | 38 | 38525 | 198.66 | 775 | 752 | 190.1 |
| D | 2 | 152 | 33798 | 173.8 | 775 | 752 | 190.1 |
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 |  |