Observation information
- date-obs: 2019-03-04
- time-obs: 02:19:12.274600000
- date-end: 2019-03-04
- time-end: 04:24:07.277300000
- obs_id: A05_188T01_9000002756
- exposure: 4394.31870988
- 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_18546cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002756_18546cztM0_level2_quad_clean.evt
|
| Size (bytes) | 638,628,480 | 89,236,800 |
| Size | 609.0 MB
| 85.1 MB
|
| Events in quadrant A | 5,968,378 | 549,391 |
| Events in quadrant B | 3,689,402 | 574,990 |
| Events in quadrant C | 3,379,242 | 550,328 |
| Events in quadrant D | 5,812,244 | 521,881 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22572 | 1 |
| B | 0 | 15785 | 1 |
| C | 0 | 14888 | 1 |
| D | 0 | 22258 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7255 | 765 | 10.544452% |
| B | 7256 | 196 | 2.701213% |
| C | 7256 | 93 | 1.281698% |
| D | 7256 | 550 | 7.579934% |
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 | 7495 | 7255 | 569 | 569 | 7.59% | 7.84% |  |
| B | 7496 | 7258 | 105 | 105 | 1.40% | 1.45% |  |
| C | 7496 | 7257 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7496 | 7258 | 477 | 477 | 6.36% | 6.57% |  |
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 | 2785131 | 16671.62 | 820 | 801 | 167.0 |
| A | 13 | 254 | 12161 | 68.02 | 820 | 801 | 167.0 |
| A | 13 | 210 | 10769 | 59.68 | 820 | 801 | 167.0 |
| B | 3 | 64 | 277878 | 1701.33 | 850 | 827 | 162.8 |
| B | 7 | 220 | 35638 | 213.77 | 850 | 827 | 162.8 |
| B | 4 | 80 | 27401 | 163.18 | 850 | 827 | 162.8 |
| C | 14 | 238 | 127308 | 654.52 | 821 | 824 | 193.2 |
| C | 9 | 54 | 49982 | 254.38 | 821 | 824 | 193.2 |
| C | 13 | 61 | 5995 | 26.76 | 821 | 824 | 193.2 |
| D | 7 | 238 | 1101810 | 5603.06 | 804 | 780 | 196.5 |
| D | 13 | 153 | 1083261 | 5508.66 | 804 | 780 | 196.5 |
| D | 1 | 52 | 459005 | 2331.87 | 804 | 780 | 196.5 |
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 |  |