The Integrated Laser Communication Relay Demonstration (LCRD) Low-Earth Orbit (LEO) User Modem and Amplifier Terminal (ILLUMA-T) will fly aboard the International Space Station as the first demonstration of a fully operational, end-to-end optical communications system.
If I understand correctly, in this demonstration one end would be the ISS, and the other would be on Earth. The paragraph continues:
ILLUMA-T will provide the space station a state-of-the-art optical communications terminal with improved size, weight and power over comparable radio-frequency communications systems. It will communicate data from low-Earth orbit to the ground through a relay satellite in geosynchronous orbit, leveraging optical communications technologies from the upcoming LCRD mission and the Lunar Laser Communication Demonstration (LLCD) that orbited the moon from 2013 to 2014. Optical technologies have the potential to greatly increase the amount of scientific data transferred from space to ground, supporting multiple channels of ultra-high-definition video from space.
Question: Has a mission or specific satellite been named to be this relay satellite in GEO that the ISS will use for its end-to-end optical communication with a ground station? Is there a description and/or an estimated launch date for this satellite?