There were two "Voyagers". Voyager I's closest approach to Jupiter was on March 5, 1979. Voyater II's closest approach to Jupiter was on July 9, 1979.
Galieo
No, but the "Voyager" probes did.
Voyager
Jupiter (Voyager 1 & 2)Saturn (Voyager 1 & 2)Uranus (Voyager 2)Neptune (Voyager 2)See related link for a full description of the Voyager exploration
Voyager 2 was sent out first to allow it to take full advantage of an unusually convenient alignment of the planets allowing it to visit Uranus and Neptune as wellVoyager 1 was launched after voyager 2, but on a faster trajectory which allowed it to reach Jupiter and Saturn before voyager 2.
Voyager 2 began observing Jupiter on April 25, 1979.
In August 1977 Voyager 2 was launched and in September 1977 Voyager 1 was launched. Although launched 16 days after Voyager 2, Voyager 1 reached Jupiter first and began sending photos back to Earth in January 1979.
Voyager 1 flew by Jupiter and Saturn. Voyager 2 flew by Jupiter, Saturn, Uranus, and Neptune.
The Voyager program was designed to study Jupiter and Saturn but was extended to study Uranus, Neptune, and the outer reaches of the solar system. The planetary alignment that allowed Voyager 2 to visit four planets was an opportunity that would not recur for 175 years.
no
Voyager is a spacecraft probe. It is not a satellite. NASA's twin Voyager spacecraft launched in August and September 1977. Voyager 1 focused on Jupiter and Saturn., while Voyager 2 flew past Jupiter, Saturn, Uranus and Neptune.
Voyager 1 & 2 reached Jupiter in 1979 and Galileo arrived at Jupiter in 1995.