Observation information
- date-obs: 2016-10-08
- time-obs: 16:05:36.577000000
- date-end: 2016-10-09
- time-end: 16:40:16.580700000
- obs_id: A02_081T01_9000000720
- exposure: 53046.8221437
- sourceid: 4U 2206+54
- observer: asat2016
- ra_pnt: 331.9843
- dec_pnt: 54.51845
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_081T01_9000000720cztM0_level2_bc.evt
| modeM0/AS1A02_081T01_9000000720cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,571,376,320 | 922,386,240 |
Size | 2.4 GB
| 879.7 MB
|
Events in quadrant A | 15,081,862 | 5,874,728 |
Events in quadrant B | 19,477,374 | 5,852,325 |
Events in quadrant C | 15,684,091 | 5,656,849 |
Events in quadrant D | 22,392,954 | 5,286,181 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158561 | 0 |
B | 0 | 172524 | 0 |
C | 0 | 160524 | 0 |
D | 0 | 181680 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1564 | 0 |
B | 0 | 1564 | 0 |
C | 0 | 1562 | 0 |
D | 0 | 1562 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 76822 | 784 | 1.020541% |
B | 76825 | 1303 | 1.696062% |
C | 76815 | 855 | 1.113064% |
D | 76828 | 2930 | 3.813714% |
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 | 88481 | 76840 | 5 | 5 | 0.01% | 0.01% |  |
B | 88481 | 76843 | 46 | 46 | 0.05% | 0.06% |  |
C | 88481 | 76843 | 59 | 59 | 0.07% | 0.08% |  |
D | 88481 | 76825 | 554 | 554 | 0.63% | 0.72% |  |
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 | 7 | 16 | 128556 | 148.44 | 3780 | 3689 | 841.2 |
A | 14 | 111 | 104973 | 120.41 | 3780 | 3689 | 841.2 |
A | 13 | 14 | 96053 | 109.8 | 3780 | 3689 | 841.2 |
B | 15 | 204 | 2014028 | 2690.45 | 3804 | 3679 | 747.2 |
B | 10 | 16 | 536294 | 712.8 | 3804 | 3679 | 747.2 |
B | 10 | 245 | 472508 | 627.43 | 3804 | 3679 | 747.2 |
C | 9 | 16 | 1056977 | 1294.58 | 3669 | 3605 | 813.7 |
C | 1 | 16 | 144129 | 172.7 | 3669 | 3605 | 813.7 |
C | 12 | 4 | 48838 | 55.59 | 3669 | 3605 | 813.7 |
D | 2 | 63 | 3603619 | 4156.14 | 3633 | 3481 | 866.2 |
D | 2 | 152 | 1117510 | 1286.08 | 3633 | 3481 | 866.2 |
D | 8 | 195 | 827755 | 951.57 | 3633 | 3481 | 866.2 |
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 |  |