1971-051A
Mariner IX, the MM71-2 (Mariner 71I, Mariner I) payload, was launched at 2223 on 1971 May 30 by Atlas Centaur from Cape Kennedy in a single burn direct ascent trajectory on azimuth 92.7 deg to solar orbit. There was one course correction, on 1971 Jun 7. Mars orbit insertion was on Nov 14; planned orbit was 1200-1500 km periapsis, 12 h period, 65 deg inc.
Mariner IX mapped the planet until 1972 Apr 2. It was reactivated on 1972 Jun 4 and transmitted until 1972 Oct 27. The Mariner IX mission gave us the first detailed look at the planet Mars in its entirety.
| Mariner 9 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1971 May 30 | 2223:04 | Launch by Atlas Centaur | |
| 2225:34 | T+2:30 BECO | ||
| Atlas MECO | |||
| 2227? | Atlas sep | ||
| 2227? | Centaur MES1 | ||
| 2235 | MECO, solar orbit | ||
| 2236 | Centaur sep T+13:18 | ||
| 2240 | Solar panels deploy | ||
| 1971 Jun 5 | 0022:00 | TCM, 5s burn 6.7m/s | |
| 1971 Nov 14 | Centaur miss by 30000 km | ||
| 1971 Nov 14 | 0017:39 | Mars orbit insertion burn, 15:15 1.6005 km/s | |
| 0033:05 | MOI | 754.01 1398 x 17915 x 64.36 | |
| 0650? | Apoapsis 1 | ||
| 1307? | Periapsis 2 | ||
| 1924? | Apoapsis 2 | ||
| 1971 Nov 15 | 0141? | Periapsis 3 | |
| 0758? | Apoapsis 3 | ||
| 1415? | Periapsis 4 | ||
| 2032? | Apoapsis 5 | ||
| 1971 Nov 16 | 0237:53 | OTM-1 6s, 15.3m/s | 718.23 1387 x 17094 x 64.4 |
| 1971 Nov 16 | 0249? | Periapsis 5 | |
| 0850? | Apoapsis 6 | ||
| 1971 Nov 26 | Recon 1 mapping phase | ||
| 1971 Dec 15 | Recon 2 mapping phase | ||
| 1971 Dec 30 | 1900? | OTM-2, Apo 94 17s 41.8m/s | 719.47 1650 x 16860 x 64.4 |
| 1971 Dec 31 | 0700? | Apoapsis 95 | |
| 1972 Jan 2 | Cycle 1 mapping | ||
| 1972 Jan 22 | Cycle 2 mapping | ||
| 1972 Feb 10 | Cycle 3 mapping | ||
| 1972 Mar 1 | Special science targeting | ||
| 1972 Apr 2 | End of standard mission | ||
| 1972 Jun 4 | Reactivated | ||
| 1972 Oct 27 | End of transmissions | ||
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