Observation information
- date-obs: 2019-07-08
- time-obs: 16:25:14.414900000
- date-end: 2019-07-10
- time-end: 02:26:29.260600000
- obs_id: A05_188T01_9000003018
- exposure: 63341.749127
- 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_9000003018cztM0_level2_bc.evt
| modeM0/AS1A05_188T01_9000003018cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,954,139,200 | 1,379,692,800 |
Size | 3.7 GB
| 1.3 GB
|
Events in quadrant A | 22,768,854 | 8,897,067 |
Events in quadrant B | 25,619,220 | 8,994,606 |
Events in quadrant C | 21,853,643 | 8,590,332 |
Events in quadrant D | 42,465,150 | 8,217,036 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2110 | 0 |
B | 0 | 2110 | 0 |
C | 0 | 2110 | 0 |
D | 0 | 2110 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 190 | 0 |
B | 0 | 190 | 0 |
C | 0 | 190 | 0 |
D | 0 | 190 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 215641 | 0 |
B | 0 | 225166 | 0 |
C | 0 | 215406 | 0 |
D | 0 | 278433 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 103466 | 1093 | 1.056386% |
B | 103466 | 1622 | 1.567665% |
C | 103466 | 1469 | 1.419790% |
D | 103466 | 5699 | 5.508090% |
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 | 122301 | 103461 | 5 | 5 | 0.00% | 0.00% |  |
B | 122300 | 103462 | 28 | 28 | 0.02% | 0.03% |  |
C | 122301 | 103465 | 4 | 4 | 0.00% | 0.00% |  |
D | 122301 | 103468 | 2553 | 2553 | 2.09% | 2.47% |  |
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 | 294847 | 230.64 | 5825 | 5735 | 1253.5 |
A | 13 | 254 | 77695 | 57.41 | 5825 | 5735 | 1253.5 |
A | 12 | 96 | 42310 | 29.18 | 5825 | 5735 | 1253.5 |
B | 10 | 245 | 2306708 | 2106.61 | 5855 | 5723 | 1092.3 |
B | 0 | 189 | 178426 | 158.11 | 5855 | 5723 | 1092.3 |
B | 0 | 219 | 177576 | 157.34 | 5855 | 5723 | 1092.3 |
C | 3 | 247 | 193137 | 145.37 | 5566 | 5550 | 1290.4 |
C | 3 | 233 | 152839 | 114.14 | 5566 | 5550 | 1290.4 |
C | 9 | 221 | 39440 | 26.26 | 5566 | 5550 | 1290.4 |
D | 2 | 16 | 9555310 | 7466.18 | 5596 | 5421 | 1279.1 |
D | 1 | 52 | 7912250 | 6181.62 | 5596 | 5421 | 1279.1 |
D | 13 | 153 | 2152642 | 1678.71 | 5596 | 5421 | 1279.1 |
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 |  |