Note: The Soviets split the Mars 4 - 7 missions into four separate Proton launches instead of their customary twin launch due to mass limitations imposed by the unfavorable Earth-Mars geometry during the 1973 launch window. All four missions were doomed by flawed onboard computer chips but were launched anyway in attempt to beat the US to the surface of Mars. See also Mars '73: Learning from Mistakes by Ted Stryk.
Viking Test - USA 11 February 1974
Note: As with the Luna list, after much thought, I decided I shall include in this population any future missions which take place in LEO but are solely dedicated to promoting Mars exploration. Space physics experiments of broad applicability (e.g. radiation measurement, magnetic mapping) are not included for the same reason. Multiple visits to the same body by the same spacecraft (e.g. GEM) do not count as multiple missions (even if they do require multiple visits to Capitol Hill for funding). Multiple visits to different primaries do. A mere gravity assist maneuver without science return doesn't really count as a mission, either - a "flyby" requires at least one instrument to be pointed in the general direction of the celestial body. This was not an accounting issue until a few Big Science missions (e.g. Galileo, Project Vega) flew some very complex trajectories with multiple gravity assists.
Credit goes out to TRW Space Log 1957-1996, The Planetary Report published by The Planetary Society, Proton Mission Planner's Manual, Jonathan's Space Report, and Chris Jones: clj@world.std.com. Many thanks to Marc Rayman at JPL for constructive criticism. A tip o' the dust visor to David Portree DSFPortree@aol.com for his sharp editorial eyes.
Launch failure (SL-6 Molniya).
Launch failure (SL-6 Molniya).
Upper stage? (SL-6 Molniya) exploded in earth orbit 29Oct1962, probe reentered 29Oct1962.
Contact lost @ 106,000,000 km enroute to Mars.
Failed to make earth orbit (SL-6 Molniya), reentered 05Nov1962.
Shroud failure prevented flyby, in solar orbit.
Returned pictures during flyby on 14Jul1965 @ 9789 km, in solar orbit, telemetry ended 20Dec1967 (micrometeoroids?).
Contact lost enroute to Mars.
Returned 75 TV pictures during flyby on 1Jul1969 @ 3392 km over equator, in solar orbit.
Returned 126 TV pictures during flyby on 05Aug1969 @ 3504 km over southern hemisphere, in solar orbit.
2nd stage (SL-12 Proton) failure.
1st stage (SL-12 Proton) failure.
2nd stage (Atlas-Centaur) failure resulted in thalassosynchronous (Atlantic Ocean) orbit.
3rd/4th stage (SL-12 Proton) separation failure in earth orbit, reentered 12May1971.
Orbiter: entered 1380 km × 25000 km × 49 ° Martian orbit on 27Nov1971, returned data for months.
Lander: First human artifact on Mars; crashed 27Nov1971 at 44 ° South x 149 ° East northeast of Kepler Crater. Return to Mars topo map.
Orbiter: entered 1530 km × 214500 km × 60 ° Martian orbit on 02Dec1971, returned data for months.
Lander: First human artifact to soft land on another planet; landed 02Dec1971 at 45 ° South × 158 ° West near Ptolemaeus Crater, failed shortly later (20 min.?). Return to Mars topo map.
Entered 1394 km × 17144 km × 64 ° Martian orbit on 13Nov1971, returned many pictures. Flew by Phobos and Deimos. Last tx 27Oct1972.
Failed to enter Mars orbit due to fuel leak, but returned one swath of color pictures of southern hemisphere and some radio occultation data during flyby on 10Feb1974 @ 2200 km. Now in solar orbit. Instruments: spectrometers, cameras, radio relay for Mars-6 lander.
Orbiter entered 1769 km × 32560 km × 35 ° Martian orbit on 12Feb1974, but failed after 22 orbits due to depressurization of instrument compartment. Although it returned some hi-res color pictures and other data, it fell so far short of its objectives that this mission, indeed the whole campaign should be counted as a failure. Instruments: spectrometers, cameras, radio relay for Mars-7 lander.
Flyby bus in solar orbit. Bus instruments: A few remote sensors.
First direct weather report from Mars. Lander returned some noisy atmospheric data during descent 12Mar1974; retrorocket failure followed by crash at 23 ° South x 25 ° West, south of Margaritifer Sinus. Instruments: television camera; mass spectrometer; soil & atmosphere composition tests; wind, temp & pressure measurement.Return to Mars topo map.
Flyby bus with lander in solar orbit. Bus instruments: A few remote sensors. Maneuvering failure, onboard systems failure, missed Mars 06Mar1974? Instruments: television camera; mass spectrometer; soil & atmosphere composition tests; wind, temp & pressure measurement.
Launch failure (Titan IIIE-Centaur). Counts as attempt or mission?
Orbiter into Mars orbit 19Jun1976, died 07Aug1980, reentered 19Nov1985.
Lander set down 20Jul76 at 22 ° North × 49 ° West in Chryse Planitia, tested soil for life, died 13Nov82, both highly successful. First successful landing on Mars. Return to Mars topo map.
Orbiter into Mars orbit 07Aug1976, died 25Jul1978, reentered when?
Lander set down at 03Sep76 at 46 ° North × 137 ° East in Utopia Planitia, died 12Apr1980; both highly successful. Return to Mars topo map.
Contact lost 29Aug1988 enroute to Martian moon Phobos due to controller error , flew past Mars.
Orbiter and ADU penetrator entered 6145 km × 6409 km × 1.3 ° Mars orbit on 31Jan1989, contact lost 18Feb1989 due to controller error?, some data returned 100 km from Phobos.
Additional reading on the Russians' bad luck can be found at: "The Rocky Soviet Road to Mars", EJASA, October 1989 by Larry Klaes of the Boston NSS chapter.
Contact lost, fuel line exploded? at Mars orbit insertion burn 21Aug1993, flew past Mars.
Entered Mars orbit 12Sep1997, aerobraking into polar sunsyn mapping orbit was delayed till 01?Nov1998 due to bent solar array, MOLA instrument returned hi-res 3-D map of Mars, currently working. See discussion of MOLA results below.
Upper stage failure in earth orbit (SL-12 Proton/Blok DM); orbiter, 2 landers, 2 penetrators and upper stage reentered within one orbit; either it sleeps with the fishes (in Pacific Ocean) or with the llamas (crashed in Bolivia)?
Direct descent via aerobraking, parachute, retrorocket and airbag, landed on Mars 04Jul1997 at 19.4° North × 33.5° West near mouth of Ares Vallis, airbag landing system worked, renamed Sagan Memorial Station, returned 16,500 pix and data, last tx 27Sep1997.
Sojourner rover worked, traversed 106 meters, returned 550 pix & chem analyses, last tx 06Oct1997. Return to Mars topo map.
Orbiter flew Mars by 4 years due to wrong burn during slingshot by Earth. Abandoned 09Dec2003.
Burned up 23Sep1999 during excessively steep reentry into Martian atmosphere caused by cumulative navigation error. See what happens when you don't check your units?
Contact lost 03Dec1999, failed due to probable premature engine cutoff during landing. Cruise ring in solar orbit.
Amundsen, Scott (DS2) penetrators also failed to separate from bus? or did cables between fore and aft halves break? The large and small crosses in the southern hemisphere mark the intended touchdown coordinates: 76° South x 195 ° for the lander, 75° South x 196° for the penetrators. The white tick marks define the upper and lower boundary of the 200 km x 20 km landing ellipse. Return to Mars topo map.
Orbiter entered Mars orbit 0218 24Oct2001. (Lander portion of mission was cancelled after MPL failure.) In 2-hour 99 km Ø 2951 km Ø 93° mapping orbit.
Instruments:
Thermal Emission Imaging System (THEMIS)
Gamma Ray Spectrometer (GRS)
Mars Radiation Environment Experiment (MARIE)
First European mission to Red Planet. Searching for signs of water. 1000 kg mission launched by Soyuz-Fregat. Orbiter entered Martian orbit 0321 UTC Christmas Day, 2003; final orbit 250 × 10243 km × 89°. Will fly by Phobos hundreds of times. Instruments:
High Resolution Stereo Camera,
"Omega" IR & visible mapping spectrometer,
Planetary Fourier Spectrometer,
Subsurface Sounding Radar/Altimeter, and
Energetic Neutral Atoms Analyser.
Lander separated from orbiter, entered Martian atmosphere @ 0247 UTC, enroute to airbag/chute landing in Isidis Planitia ? ° × ? ° East @ 0252 UTC 25Dec2003. Not heard from since. Return to Mars topo map.
Separated from cruise stage@ 0433 UTC 25Jan2004; entered atmosphere @ 0449; lander bounced (airbags) inside Meridiani Planum, at 2° South × 354° East @ 0454. Site renamed Challenger Memorial Station. This is a bit of a cobwebpage; fresh updates and news coming soon.Return to Mars topo map.
Click here for status of rovers.
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