

Later contact lost due to loss of fuel.Īpproached Mars too closely during orbit insertion attempt due to a software interface bug involving different units for impulse and burned up in the atmosphere Landed at 19.13°N 33.22°W on 4 July 1997, Last contact on 27 September 1997įirst rover to operate on another planet. Two Mars Penetrators to have been deployed by Mars 96.

Two Mars landers to have been deployed by Mars 96. Lost communications before orbital insertion Orbital observations successful, communications lost before lander deployment. Operated for 1281 sols (11 April 1980).Ĭommunications lost before reaching Mars failed to enter orbit Entered Mars orbit on 7 August 1976.ĭeployed from Viking 2 orbiter.

Entered Mars orbit on 19 June 1976.įirst successful Mars lander. Separated from coast stage prematurely, failed to enter Martian atmosphere. returned 180 framesĬontact lost upon landing, atmospheric data mostly unusable. Returned photographs of Mars during flyby.Ĭontact lost after 9 days in Mars orbit. Deactivated 516 days after entering orbit.įailed to perform orbital insertion burn. įirst spacecraft to orbit another planet, two weeks ahead of Mars 2 on November 14. Deployment status unknown due to loss of communications with the Mars 3 lander. 4.5 kg (9.9 lb) rover connected to the Mars 3 lander by a tether. Ĭarrier vehicle failed before rover was deployedįirst rover to make a soft landing on another planet. Contact lost 20 seconds after transmission started, 110 seconds after landing. First partial image (70 lines) transmitted showing "gray background with no details". Operated for 20 orbits įirst lander to make a soft landing on Mars. On December 2 it became in short sequence the third spacecraft to orbit another planet. Lost when the Mars 2 lander crashed into the surface of Mars. Deployed from Mars 2, failed to land during attempt on 27 November 1971. Operated for 362 orbits įirst lander to impact Mars. On November 27 it became in short sequence the second spacecraft to orbit another planet. Never left LEO booster stage burn timer set incorrectly Gravity assist, destination elsewhere Missionīooster stage ("Block L") disintegrated in LEOįirst successful flyby of Mars on 15 July 1965
