Let's pretend we have to plan an interplanetary travel. We want
to leave Earth on 20th april 2008, and arrive on Jupiter on 31st december 2010. However, we may want
to leave a bit sonner or later if it allows us to get a cheaper travel...
So we will have to get a scan of 60 points for departure times between now (which is represented
by the time 0.0) and 3 years later (so time 3.0). Ibidem for the arrival, we accept to arrive between
year 3 and year 6. We want to know for which dates your travel will cost the least. So we will use a
view DeltaV from LPDO, and enter the limits 0 and 40 km/s in the min and max
fields, and we shall see which departure time is the most interesting, e.g. needs the lowest velocity
change, hence the least amount of fuel. The completed scan should look like this:
We notice some dark blue/purple areas which indicate that every year, there is a launch window
with a relatively low initial velocity, and that the travel time will be about three years.