Observation information
- date-obs: 2019-03-04
- time-obs: 01:38:33.273700000
- date-end: 2019-03-05
- time-end: 07:20:15.310800000
- obs_id: A05_188T01_9000002756
- exposure: 62806.2970432
- 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_9000002756cztM0_level2_bc.evt
| modeM0/AS1A05_188T01_9000002756cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,834,192,960 | 1,280,191,680 |
Size | 3.6 GB
| 1.2 GB
|
Events in quadrant A | 28,611,565 | 8,188,939 |
Events in quadrant B | 21,690,242 | 8,541,800 |
Events in quadrant C | 19,016,541 | 8,060,713 |
Events in quadrant D | 40,406,566 | 7,547,794 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1908 | 0 |
B | 0 | 1908 | 0 |
C | 0 | 1908 | 0 |
D | 0 | 1908 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 133 | 0 |
B | 0 | 133 | 0 |
C | 0 | 133 | 0 |
D | 0 | 133 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 229382 | 0 |
B | 0 | 203855 | 0 |
C | 0 | 196725 | 0 |
D | 0 | 270406 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 93907 | 4212 | 4.485289% |
B | 93907 | 1686 | 1.795393% |
C | 93907 | 1489 | 1.585611% |
D | 93907 | 7065 | 7.523401% |
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 | 106903 | 93903 | 545 | 545 | 0.51% | 0.58% |  |
B | 106903 | 93901 | 39 | 39 | 0.04% | 0.04% |  |
C | 106903 | 93901 | 0 | 0 | 0.00% | 0.00% |  |
D | 106903 | 93899 | 2303 | 2303 | 2.15% | 2.45% |  |
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 | 9882030 | 9513.88 | 4787 | 4701 | 1038.2 |
A | 13 | 254 | 151145 | 141.06 | 4787 | 4701 | 1038.2 |
A | 14 | 111 | 79849 | 72.38 | 4787 | 4701 | 1038.2 |
B | 3 | 64 | 1164075 | 1242.38 | 4963 | 4834 | 933.1 |
B | 12 | 18 | 305803 | 322.55 | 4963 | 4834 | 933.1 |
B | 4 | 80 | 267673 | 281.69 | 4963 | 4834 | 933.1 |
C | 9 | 54 | 900620 | 822.94 | 4665 | 4635 | 1088.8 |
C | 3 | 233 | 75809 | 65.37 | 4665 | 4635 | 1088.8 |
C | 8 | 128 | 39972 | 32.46 | 4665 | 4635 | 1088.8 |
D | 7 | 238 | 12739330 | 11734.79 | 4603 | 4430 | 1085.2 |
D | 1 | 52 | 7369220 | 6786.41 | 4603 | 4430 | 1085.2 |
D | 13 | 153 | 866233 | 794.12 | 4603 | 4430 | 1085.2 |
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 |  |