Observation information
- date-obs: 2019-07-08
- time-obs: 20:54:49.354000000
- date-end: 2019-07-08
- time-end: 23:10:26.345900000
- obs_id: A05_188T01_9000003018
- exposure: 2749.856683
- 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_9000003018_20423cztM0_level2.evt
| modeM0/AS1A05_188T01_9000003018_20423cztM0_level2_quad_clean.evt
|
| Size (bytes) | 526,731,840 | 69,177,600 |
| Size | 502.3 MB
| 66.0 MB
|
| Events in quadrant A | 3,216,311 | 429,243 |
| Events in quadrant B | 3,317,018 | 439,954 |
| Events in quadrant C | 3,235,131 | 415,006 |
| Events in quadrant D | 5,778,958 | 392,888 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13063 | 2 |
| B | 0 | 13362 | 2 |
| C | 0 | 13050 | 2 |
| D | 0 | 21247 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5973 | 27 | 0.452034% |
| B | 5973 | 67 | 1.121714% |
| C | 5973 | 46 | 0.770132% |
| D | 5973 | 467 | 7.818517% |
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 | 7373 | 5974 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7373 | 5974 | 8 | 8 | 0.11% | 0.13% |  |
| C | 7373 | 5974 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7373 | 5974 | 458 | 458 | 6.21% | 7.67% |  |
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 | 5 | 16 | 9666 | 54.68 | 830 | 817 | 161.8 |
| A | 0 | 226 | 7207 | 39.48 | 830 | 817 | 161.8 |
| A | 3 | 137 | 6191 | 33.2 | 830 | 817 | 161.8 |
| B | 4 | 216 | 30087 | 190.79 | 833 | 815 | 153.4 |
| B | 12 | 111 | 17576 | 109.25 | 833 | 815 | 153.4 |
| B | 10 | 245 | 17307 | 107.49 | 833 | 815 | 153.4 |
| C | 14 | 238 | 129556 | 708.11 | 794 | 803 | 181.8 |
| C | 3 | 233 | 10569 | 53.71 | 794 | 803 | 181.8 |
| C | 13 | 61 | 5535 | 26.02 | 794 | 803 | 181.8 |
| D | 2 | 16 | 1603036 | 8744.34 | 780 | 761 | 183.2 |
| D | 1 | 52 | 1038203 | 5661.79 | 780 | 761 | 183.2 |
| D | 13 | 153 | 184511 | 1002.81 | 780 | 761 | 183.2 |
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 |  |