Observation information
- date-obs: 2018-11-16
- time-obs: 18:56:46.644700000
- date-end: 2018-11-18
- time-end: 00:55:50.613200000
- obs_id: A05_188T01_9000002520
- exposure: 58859.0389985
- 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_9000002520cztM0_level2_bc.evt
| modeM0/AS1A05_188T01_9000002520cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,866,909,760 | 1,196,674,560 |
Size | 3.6 GB
| 1.1 GB
|
Events in quadrant A | 18,446,077 | 7,786,493 |
Events in quadrant B | 28,077,197 | 7,707,947 |
Events in quadrant C | 23,626,261 | 7,639,950 |
Events in quadrant D | 40,841,799 | 6,951,538 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1832 | 0 |
B | 0 | 1832 | 0 |
C | 0 | 1832 | 0 |
D | 0 | 1832 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 186057 | 0 |
B | 0 | 223448 | 0 |
C | 0 | 204635 | 0 |
D | 0 | 281614 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 137 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 89801 | 1127 | 1.254997% |
B | 89801 | 5054 | 5.628000% |
C | 89801 | 1557 | 1.733834% |
D | 89801 | 10792 | 12.017684% |
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 | 107945 | 89804 | 22 | 22 | 0.02% | 0.02% |  |
B | 107945 | 89790 | 1192 | 1192 | 1.10% | 1.33% |  |
C | 107945 | 89804 | 1 | 1 | 0.00% | 0.00% |  |
D | 107945 | 89759 | 1076 | 1076 | 1.00% | 1.20% |  |
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 | 15 | 174 | 520177 | 513.69 | 4626 | 4532 | 1003.8 |
A | 12 | 189 | 135831 | 130.8 | 4626 | 4532 | 1003.8 |
A | 9 | 143 | 39632 | 34.97 | 4626 | 4532 | 1003.8 |
B | 3 | 64 | 7629412 | 8890.83 | 4573 | 4453 | 857.6 |
B | 15 | 35 | 750661 | 870.09 | 4573 | 4453 | 857.6 |
B | 3 | 209 | 373318 | 430.1 | 4573 | 4453 | 857.6 |
C | 3 | 233 | 6003723 | 5650.9 | 4536 | 4500 | 1061.6 |
C | 0 | 207 | 130730 | 118.9 | 4536 | 4500 | 1061.6 |
C | 5 | 112 | 28003 | 22.14 | 4536 | 4500 | 1061.6 |
D | 1 | 52 | 21332631 | 21082.8 | 4326 | 4172 | 1011.7 |
D | 15 | 0 | 991072 | 975.53 | 4326 | 4172 | 1011.7 |
D | 2 | 152 | 400224 | 391.49 | 4326 | 4172 | 1011.7 |
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 |  |