Pioneer 11 took the first pictures of Jupiter's polar region, showing that they possess a circulation slower than the equatorial regions. Data from the spacecraft shows that the planet's magnetic field may be created not only by a large ring current within Jupiter, but also by many eddies. Pioneer 11 also discovered electrons near the planet in quantities 10 times greater than anticipated. It also discovered more flow features around the Great Red Spot than had been previously thought. The spacecraft was not directed on the same path as Pioneer 10, but rather directed beneath the planet's southern hemisphere to use Jupiter's gravitational acceleration as a boost on the way to a September 1, 1979, visit with the planet Saturn.