Viking 1 Posted on 10 January 202110 January 2021 By admin Viking 1 SCET (UTC) Event20-08-197521:22:00Launch on a Titan/Centaur rocket19-06-1976Mars orbit insertion21-06-1976New 1,513 x 33,000 km orbit for landing site certification20-07-197608:51Lander separation from orbiter20-07-197611:53:06Lander touchdown on Mars01-02-1977Close approaches to Phobos11-03-1977New 300 x 33,000 km orbit20-07-1979New 357 x 33,000 km orbit07-08-1980Orbiter attitude gas running low. New 320 x 56,000 km parking orbit to avoid collision with Mars before 201917-08-1980Orbiter operations terminated after 1,485 orbits13-11-1982Contact to lander lost. End of mission