Wise answer. Tks! David ! It will change assumption.

Idea is like having a magnet with its south pole pointing to earth when satellite is over earth north (which is a magnet south). It is supposed to be repelled. Instead of magnet a coil with controllable current will be used.

Tks again ! Best 73, Pedro Converso lu7abf@amsat.org.ar www.amsat.org.ar

In a message dated 19/02/2007 21:50:04 GMT Standard Time, lu7abf@amsat.org.ar writes:

Argument is: if when satellite is in the north, a north magnetic field is applied on z plane, will satellite raise orbit ? Same but opposite on south. Considering limited energy available could this raise be significant if applied on all orbits ?.

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Very interesting. Don't know the answer.

However, if you are in the North then you need to generate a 'south pole' to repel the satellite.

-Remember, the geographic north pole is a magnetic south pole- That's why the north pole of your compass points towards it.

73

David