Technology Experiment Satellite (TES) is Indian remote sensing and photo-reconnaissance satellite. The 1108 kg satellite carries a one-meter resolution panchromatic camera is an experimental satellite to demonstrate and validate, in orbit, technologies that could be used in the future satellites of Indian Space Research Organisation (ISRO). It was successfully placed in 572 km Sun-synchronous orbit on 22 October 2001 using the PSLV-C3. The PSLV-C3 also injected two more satellites: PROBA, a Belgian satellite and BIRD, a German satellite.
Sun-Synchronous OrbitSoyuz TM-33 was a visiting mission to ISS, which carried 3 cosmonauts and astronauts. Russian Commander, cosmonaut Viktor Afanasyev alongside Flight Engineer, ESA astronaut Claudie Haigneré and Flight Engineer/Spaceflight Participant, Konstantin Kozeyev launched aboard the Soyuz spacecraft on October 21, 2001, 08:59:35 UTC. They docked with the station two days later. During their stay there, crew assisted Expedition 3 members in station work. Soyuz TM-33 crew returned aboard Soyuz TM-32, landing safely back on Earth on October 31, 2001, 05:00:00 UTC.
Low Earth OrbitThe primary purpose of the SDS satellites is to relay imagery from low-flying reconnaissance satellites, notably the Keyhole optical reconnaissance and Lacrosse/Onyx radar reconnaissance satellites to ground stations in the United States.
Geostationary Orbit