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VOYAGER 2. Antoine Henderson Fiona Ward. About. 722 kg space probe L aunched August 20, 1977 Launched before (but eventually passed by) Voyager 1 Operating for 36 years, 1 month, and 27 days (17 Oct) 103.00 AU from Earth (15 Oct)
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VOYAGER 2 Antoine Henderson Fiona Ward
About • 722 kg space probe • Launched August 20, 1977 • Launched before (but eventually passed by) Voyager 1 • Operating for 36 years, 1 month, and 27 days (17 Oct) • 103.00 AU from Earth (15 Oct) • Still receiving and transmitting via Deep Space Network • Current Velocity: 15.428 km/s (relative to Sun)
Spacecraft Specifications • Jet Propulsion Laboratory • Attitude and Articulation Control Subsystem (AACS) • 16 Hydrazine Thrusters • Three-axis stabilization • Gyroscopes and celestial referencing instruments (Sun sensor/Canopus Star Tracker) • High-gain antenna • 8 back-up thrusters • The Golden Record • 11 Scientific Instruments • Imaging & Radio systems • Infrared, Ultraviolet, & Plasma Spectrometers • Triaxial Fluxgate Magnetometer • Low Energy Charged Particle Instrument • Cosmic Ray & Plasma Wave systems • Planetary Radio Astronomy Investigation • PhotopolarimeterSystem • Power: 3 Multihundred-Watt radioisotope thermoelectric generators (MHW RTG)
Mission Objectives • “To extend the NASA exploration of the solar system beyond the neighborhood of the outer planets to the outer limits of the Sun's sphere of influence, and possibly beyond.” –JPL, NASA • Characterize outer solar system • Discovery & Infiltration of Heliopause Boundary
Accomplishments • Only Space Probe to Study All Four Jovian Planets • Jupiter • Saturn • Uranus • Neptune • Discovered: • Volcanic Activity on Io • Great Red Spot Was a Storm • Moved in an Anti-Clockwise Motion • Rings of Jupiter • Roughly Determined Structure of Jupiter’s Rings