2016-02-23, 19:20
Hello,
Dealing with raw data I wondered how accurately the whole system (especially concerning Europe) is working.
When downloading raw data the coordinates are given with an accuracy of five or six decimal places. Calculating worst case scenario (a stroke being detected on the equator) the maximum deviation would be calculated as following:
5 decimal places: +- 55,5 m
6 decimal places: +- 5,5 cm
(The stroke was detected in a circle with +- x metres round the given position.)
I do not think the network is able to calculate positions of strokes with this accuracy, can it?
Secondly I wondered about the deviation parameter "mds" descibed as giving the maximum deviation in nanoseconds. Am I right this value refers to the stroke´s timestamp given at the beginning of each line? But in what way does this affect the position of the stroke?
(Could it be the radius of the circle is calculated by multiplying the deviation "mds" with c = 299 792 458 m/s?)
best regards
PothThom
and thanks for your time...
Dealing with raw data I wondered how accurately the whole system (especially concerning Europe) is working.
When downloading raw data the coordinates are given with an accuracy of five or six decimal places. Calculating worst case scenario (a stroke being detected on the equator) the maximum deviation would be calculated as following:
5 decimal places: +- 55,5 m
6 decimal places: +- 5,5 cm
(The stroke was detected in a circle with +- x metres round the given position.)
I do not think the network is able to calculate positions of strokes with this accuracy, can it?
Secondly I wondered about the deviation parameter "mds" descibed as giving the maximum deviation in nanoseconds. Am I right this value refers to the stroke´s timestamp given at the beginning of each line? But in what way does this affect the position of the stroke?
(Could it be the radius of the circle is calculated by multiplying the deviation "mds" with c = 299 792 458 m/s?)
best regards
PothThom
and thanks for your time...
Stations: 416