OICETS

Communications schematic for the OICETS mission

OICETS (Optical Interorbit Communications Engineering Test Satellite), or Kirari, was a JAXA mission begun in 1993 and launched in 2005. The satellite was a 570 kg payload designed to test interorbit links (space to space links between satellites in different orbits). It established an optical link between itself and ESA’s ARTEMIS as well two additional space-to-space S-band links.

More information on SPOT-4 can be found on the Earth Observation Mission website [1].