Author : Lars Berger
Date : 07.10.2014
Last Modification : 17.10.2014
Helios E2 data

The data has been copied from CD without any information about the structure and physical units!
By looking into the data and compare them to Helios-Fluid data files which are available and are to some extend commented, I end up with the following "Interpretation" of the E2 files:
()
filenames are : 
he11s7436200.asc

he1              -> Helios1
   1s            -> 1second data (1second is probably wrong -> s.below it is rather 0.25 second, 4 Hz respectively. But sometimes 2 Hz or 1Hz or even different cadence occure!!!)
     74          -> year
       362       -> day of year
          00     -> Version number???
	    .asc -> ASCII ?


structure of the files:
1974-12-28T00:00:00.133          -0.300          3.800          0.000
1974-12-28T00:00:00.383          -0.400          3.900         -0.400
1974-12-28T00:00:00.633          -0.600          4.100         -0.400
1974-12-28T00:00:00.883          -0.900          3.900         -0.400
1974-12-28T00:00:01.133          -0.800          4.000         -0.400
1974-12-28T00:00:01.383          -0.800          3.700         -0.400
1974-12-28T00:00:01.633          -0.500          3.800         -0.400
1974-12-28T00:00:01.883          -0.400          3.700         -0.400
1974-12-28T00:00:02.133          -0.800          4.000         -0.400
1974-12-28T00:00:02.383          -0.800          3.700         -0.400
1974-12-28T00:00:02.633          -0.800          3.600         -0.800
1974-12-28T00:00:02.883          -0.900          3.900         -0.800
...

Timestamp                        Bx[nT]          By[nT]        Bz[nT]
1974-12-28T00:00:00.133          -0.300          3.800         0.000

yyyy-mm-ddThh:mm:ss...           whatever x,y,z coordinates are? (Most probable something like RTN???)
					-> From Sofiane Bourouaine : x,y,z is indeed RTN!  


allhe1E2.tar and allhe2E2.tar contain all files for helios1, and helios2 respectively.