"Jorge R. Frank" wrote:

"Explorer" wrote in
roups.com:

How do you maintain a relative velocity of zero, one km from a target,
for an indefinite period of time?

You don't. But you could maintain it for some definite period of time by
stationkeeping. That requires sensors, avionics, and thrusters, which not
coincidentally is the same hardware you need for any other kind of prox
ops.

It seems to me that you could develop any number of cheap/simple
'sensors' that are more than adequate for maintaining station at 1km +
or - an arbitrary fudge factor, yet be utterly unable to perform prox
ops.

D.
--
Touch-twice life. Eat. Drink. Laugh.

-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL