RENDEZVOUS RADAR SYSTEM
Range/Rate Indicator
Indicates the range and rate from the vehicle to dock with in space. As the indicator moves toward zero, the closing long as the range rate needle precedes the range needle rate is not excessive. When the indicating edges of the needles coincide as the needles move toward zero, the maximum tolerable closing rate is indicated. If the range needle precedes the range rate needle toward zero, the closing rate is excessively high.