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Leaving Mercury behind, the spacecraft looped around the Sun and headed back to its target, helped along by subsequent course corrections May 9, May 10 and July 2, 1974. Mariner 10 flew by Mercury once more on at 20:59 UT Sept. 21, 1974, at a range of about 29,869 miles (48,069 kilometers), adding imagery of the southern polar region.
- United States of America (USA)
- Mariner-73J / Mariner-J
- Mercury Flyby, Venus Flyby
- 1,100 pounds (502.9 kilograms)
Mariner 10 was an American robotic space probe launched by NASA on 3 November 1973, to fly by the planets Mercury and Venus. It was the first spacecraft to perform flybys of multiple planets. [3] Mariner 10 was launched approximately two years after Mariner 9 and was the last spacecraft in the Mariner program.
Apr 1, 2024 · Looping back around the Sun, Mariner 10 returned for its second visit, Mercury II, over the planet’s southern hemisphere on Sept. 21. Although the flyby distance of 29,870 miles (48,070 km) was ...
Jan 6, 2022 · The vehicle’s first planetary encounter was with Venus on 3 November 1973. Mariner 10 took some 4,000 photos of Venus, which revealed a nearly round planet enveloped in smooth cloud layers. The Venus flyby deflected Mariner 10’s trajectory towards Mercury, which it flew past at 756 km altitude on 29 March 1974.
Mariner 10. Launch: 3 November 1973 Flyby 1: 29 March 1974 Flyby 2: 21 September 1974 Flyby 3: 16 March 1975. In the 1970s, NASA’s Mariner 10 made 3 flybys of Mercury, seeing the same side each time and revealing its crater-ridden surface and magnetic field.
Nov 3, 1973 · Mariner 10. Mariner 10. The first mission to employ gravity assist, or using the gravity of a planet to alter a spacecraft's speed and trajectory to fly by its target planet, the Mariner 10 mission flew by both Venus and Mercury, snapping photos and collecting data.
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After completing a 176-day solar orbit following its first Mercury flyby, the Mariner 10 spacecraft successfully encountered Mercury for a second time on September 21, 1974 (Figure 4). The reencounter was at the same position in the solar system, 0.46 AU from the Sun. The spacecraft passed by the sunlit side of Mercury at an altitude of 48,069 km.