Part 4:

EMF maxed out at 4.5 
Part 5:
without the time change of 10 nano seconds the error in the position
is only up to the order of 10 ^-8 kilometers.

With the time change, the position error rises to around 40 kilometers 
and the Error Magnification reaches around the order of 10^3

Part 6 : 
GPS error : 1.2e-11
Condition number ~ 1.2e13