What kind of instruments are currently used, when ground control is monitoring a docking of new ship (or) segment to the ISS.
Do they monitor it at all?
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YES it is monitored by ground control station but it is controlled by the astronaut in ISS or sometimes it may be automated
space vision system which uses camera to capture 2D images and then convert it to 3D images by using computer . And with the help of this system astronaut uses the robotic arm . but this system has certain problem
TRIdar is a relative navigation vision system which uses a 3D camera and thermal imaging (LASER based)
This laser- based system tracks retro reflectors located on the ISS to provide bearing, range and closing rate information. While reliable, target based systems have operational limitations as targets must be installed on target payloads. This is not always practical or even possible. For example, servicing existing satellites that don’t have reflectors installed would require a targetless tracking capability.
TORU has two joysticks which can be used to manually fly the ship.The left joystick is used to control the movement of the ship and the right joystick is used to control its orientation. The system also includes a camera that is mounted on the docking spacecraft and provides visual feedback when the spacecraft is remotely controlled from the station to that it is docking. TORU also transfers sounds from the spacecraft that may provide indirect information about the docking process
kurs docking system it is used in ISS and MIR when a vehicle approach the space station it will emit radar pulses from multiple antennas and change in the strength between the antennas allows the system to compute relative position, attitude, and approach rate.