Observation information
- date-obs: 2019-03-04
- time-obs: 12:51:36.287400000
- date-end: 2019-03-04
- time-end: 14:54:13.289600000
- obs_id: A05_188T01_9000002756
- exposure: 5295.22590862
- 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_18553cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002756_18553cztM0_level2_quad_clean.evt
|
| Size (bytes) | 502,286,400 | 107,953,920 |
| Size | 479.0 MB
| 103.0 MB
|
| Events in quadrant A | 3,023,422 | 728,790 |
| Events in quadrant B | 3,199,925 | 748,102 |
| Events in quadrant C | 2,981,646 | 699,284 |
| Events in quadrant D | 5,584,331 | 658,632 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| 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 | 13154 | 1 |
| B | 0 | 13659 | 1 |
| C | 0 | 13053 | 2 |
| D | 0 | 20814 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6236 | 49 | 0.785760% |
| B | 6237 | 71 | 1.138368% |
| C | 6236 | 69 | 1.106479% |
| D | 6236 | 536 | 8.595253% |
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 | 7357 | 6236 | 12 | 12 | 0.16% | 0.19% |  |
| B | 7358 | 6237 | 18 | 18 | 0.24% | 0.29% |  |
| C | 7357 | 6237 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7357 | 6236 | 464 | 464 | 6.31% | 7.44% |  |
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 | 8 | 27356 | 170.49 | 774 | 759 | 156.0 |
| A | 13 | 254 | 11944 | 71.7 | 774 | 759 | 156.0 |
| A | 0 | 226 | 6957 | 39.73 | 774 | 759 | 156.0 |
| B | 3 | 64 | 124344 | 834.51 | 775 | 756 | 148.1 |
| B | 12 | 111 | 16962 | 109.43 | 775 | 756 | 148.1 |
| B | 4 | 80 | 15741 | 101.18 | 775 | 756 | 148.1 |
| C | 14 | 238 | 115840 | 673.33 | 729 | 733 | 171.0 |
| C | 3 | 233 | 8386 | 44.77 | 729 | 733 | 171.0 |
| C | 9 | 54 | 8051 | 42.81 | 729 | 733 | 171.0 |
| D | 7 | 238 | 2028202 | 11507.3 | 721 | 700 | 176.2 |
| D | 10 | 50 | 610517 | 3461.08 | 721 | 700 | 176.2 |
| D | 1 | 52 | 148963 | 841.48 | 721 | 700 | 176.2 |
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 |  |