TETR 3 - .
Payload: TETR D. Mass: 20 kg (44 lb). Nation: USA.
Agency: NASA Greenbelt.
Class: Technology.
Type: Tracking network technology satellite. Spacecraft: TETR.
Decay Date: 1978-09-19 . USAF Sat Cat: 5492 . COSPAR: 1971-083B. Apogee: 570 km (350 mi). Perigee: 403 km (250 mi). Inclination: 33.00 deg. Period: 94.30 min. Test satellite for NASA's Manned Space Flight Network. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .