Project Space Shuttle Vessel

[Tim13]

The title at the top says it all: it displays the Ku-Band antenna rates (in the EL/AZ coordinates), as it tracks a target, so you can tell which direction the target is going.
It shakes too much currently, but it is still usable. An improvement is on the todo list.

So it's called the line of site rates display....didn't think it would be that easy coming from a government agency.

So how is it used? Do you put the DAP in lvlh alt modes then use rcs translation? Assuming top and bottom is prograde and retrograde, or is that the z axis?

 

[GLS]

So it's called the line of site rates display....didn't think it would be that easy coming from a government agency.

So how is it used? Do you put the DAP in lvlh alt modes then use rcs translation? Assuming top and bottom is prograde and retrograde, or is that the z axis?

This is the EL/AZ coordinate system, so looking at that display is like looking up thru the overhead windows.


E.g., if the AZ needle is to the left, it means the target is moving towards the left, not where it is, but just the direction of relative motion.

As for usage... I'm not sure it had much use. AFAIK, it is the only way to find out where the target is moving towards while approaching during the night, but the system is so good that this probably used just to confirm that the rates are low, i.e., the relative motion is mostly radial.