Observation information
- date-obs: 2018-11-17
- time-obs: 04:33:09.632500000
- date-end: 2018-11-17
- time-end: 06:43:41.630800000
- obs_id: A05_188T01_9000002520
- exposure: 4102.43614258
- 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_16964cztM0_level2.evt
| modeM0/AS1A05_188T01_9000002520_16964cztM0_level2_quad_clean.evt
|
| Size (bytes) | 537,010,560 | 97,623,360 |
| Size | 512.1 MB
| 93.1 MB
|
| Events in quadrant A | 3,166,948 | 650,414 |
| Events in quadrant B | 5,382,861 | 591,027 |
| Events in quadrant C | 3,505,734 | 650,478 |
| Events in quadrant D | 3,783,954 | 627,681 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13046 | 2 |
| B | 0 | 20044 | 3 |
| C | 0 | 14179 | 2 |
| D | 0 | 15096 | 2 |
| 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 | 6252 | 30 | 0.479846% |
| B | 6251 | 836 | 13.373860% |
| C | 6251 | 76 | 1.215805% |
| D | 6251 | 76 | 1.215805% |
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 | 7588 | 6254 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7587 | 6253 | 688 | 688 | 9.07% | 11.00% |  |
| C | 7587 | 6253 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7587 | 6253 | 49 | 49 | 0.65% | 0.78% |  |
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 | 12 | 189 | 20027 | 118.38 | 819 | 803 | 162.4 |
| A | 0 | 226 | 7227 | 39.56 | 819 | 803 | 162.4 |
| A | 12 | 194 | 6001 | 32.01 | 819 | 803 | 162.4 |
| B | 3 | 64 | 2180455 | 15422.91 | 764 | 746 | 141.3 |
| B | 15 | 35 | 78076 | 547.16 | 764 | 746 | 141.3 |
| B | 0 | 197 | 49172 | 342.65 | 764 | 746 | 141.3 |
| C | 3 | 233 | 220501 | 1175.46 | 809 | 817 | 186.9 |
| C | 14 | 238 | 124786 | 663.32 | 809 | 817 | 186.9 |
| C | 13 | 61 | 5751 | 26.4 | 809 | 817 | 186.9 |
| D | 1 | 52 | 425875 | 2172.38 | 809 | 788 | 195.7 |
| D | 11 | 129 | 111095 | 563.72 | 809 | 788 | 195.7 |
| D | 1 | 255 | 77530 | 392.19 | 809 | 788 | 195.7 |
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 |  |