Observation information
- date-obs: 2019-08-14
- time-obs: 01:10:45.922800000
- date-end: 2019-08-15
- time-end: 10:30:17.884400000
- obs_id: T03_131T01_9000003090
- exposure: 60475.7151641
- sourceid: SAX J1808-3658
- observer: an.sanna
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T03_131T01_9000003090cztM0_level2_bc.evt
| modeM0/AS1T03_131T01_9000003090cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,736,733,760 | 1,302,912,000 |
Size | 3.5 GB
| 1.2 GB
|
Events in quadrant A | 22,267,412 | 8,245,258 |
Events in quadrant B | 24,817,983 | 8,362,696 |
Events in quadrant C | 21,231,131 | 8,178,796 |
Events in quadrant D | 37,915,793 | 7,699,644 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2072 | 0 |
B | 0 | 1970 | 0 |
C | 0 | 2072 | 0 |
D | 0 | 2072 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 183 | 0 |
B | 0 | 183 | 0 |
C | 0 | 183 | 0 |
D | 0 | 183 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 213481 | 0 |
B | 0 | 223952 | 0 |
C | 0 | 211608 | 0 |
D | 0 | 267828 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 101913 | 1296 | 1.271673% |
B | 101913 | 1916 | 1.880035% |
C | 101913 | 1624 | 1.593516% |
D | 101913 | 4809 | 4.718731% |
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 | 119973 | 101916 | 36 | 36 | 0.03% | 0.04% |  |
B | 119973 | 101919 | 16 | 16 | 0.01% | 0.02% |  |
C | 119973 | 101914 | 0 | 0 | 0.00% | 0.00% |  |
D | 119973 | 101912 | 956 | 956 | 0.80% | 0.94% |  |
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 | 977593 | 812.11 | 5523 | 5424 | 1197.1 |
A | 2 | 79 | 60822 | 46.28 | 5523 | 5424 | 1197.1 |
A | 13 | 210 | 44290 | 32.47 | 5523 | 5424 | 1197.1 |
B | 7 | 220 | 1450723 | 1371.49 | 5623 | 5487 | 1053.8 |
B | 3 | 64 | 476142 | 446.64 | 5623 | 5487 | 1053.8 |
B | 0 | 189 | 353316 | 330.08 | 5623 | 5487 | 1053.8 |
C | 10 | 91 | 197491 | 151.62 | 5400 | 5390 | 1267.0 |
C | 9 | 54 | 113013 | 84.94 | 5400 | 5390 | 1267.0 |
C | 7 | 247 | 107841 | 80.86 | 5400 | 5390 | 1267.0 |
D | 1 | 52 | 9802817 | 8008.0 | 5373 | 5191 | 1223.5 |
D | 7 | 238 | 1522254 | 1239.96 | 5373 | 5191 | 1223.5 |
D | 9 | 1 | 1461216 | 1190.07 | 5373 | 5191 | 1223.5 |
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 |  |