Juno Mission To Jupiter NASA New Frontiers Program Launch Date: Aug. 5, 11:34 a.m. EDT Launch Period: Aug. 5 – 26 (~60 min window) Launch Vehicle: Atlas V-551 – ULA Denver Launch Site: Cape Canaveral NASA: Jet Propulsion Laboratory Principal Investigator : Southwest Research Institute Co-Investigator : University of Colorado Spacecraft: Lockheed Martin Denver Launch Date: Aug. 5, 11:34 a.m. EDT Launch Period: Aug. 5 – 26 (~60 min window) Launch Vehicle: Atlas V-551 – ULA Denver Launch Site: Cape Canaveral NASA: Jet Propulsion Laboratory Principal Investigator : Southwest Research Institute Co-Investigator : University of Colorado Spacecraft: Lockheed Martin Denver Atlas V 551 New Horizons

Jupiter 484 million miles from Sun (receives ~4% the solar energy) 9.9 hour day, Jovian year is ~11.9 Earth years 318 times as massive as Earth 1,400 more volume, 88,846 miles in diameter ¼ as Dense (1.33 times water) 63 moons + Centuries old Great Red Spot Largest planetary magnetic field Radiates more heat than it receives from the Sun Atmosphere 90% hydrogen, 10% helium; traces of methane, ammonia, water, ethane, ice Visited by Pioneers, Voyagers, Cassini, New Horizons Orbited by Galileo with an atmospheric probe 484 million miles from Sun (receives ~4% the solar energy) 9.9 hour day, Jovian year is ~11.9 Earth years 318 times as massive as Earth 1,400 more volume, 88,846 miles in diameter ¼ as Dense (1.33 times water) 63 moons + Centuries old Great Red Spot Largest planetary magnetic field Radiates more heat than it receives from the Sun Atmosphere 90% hydrogen, 10% helium; traces of methane, ammonia, water, ethane, ice Visited by Pioneers, Voyagers, Cassini, New Horizons Orbited by Galileo with an atmospheric probe

Trajectory & Science Five-year cruise to Jupiter, arriving July 2016 Deep Space Maneuver (DSM): 2, 33 min Engine Burns Earth Fly-by Gravity Assist Jupiter polar orbit for about one year –33 orbits, (11 day period) –Galileo plan was 2 years, lasted 8 years Mission ends with de-orbit into Jupiter –Same as Galileo (protect Moons) 9 Experiments, 25 Sensors Color camera - Junocam –First detailed glimpse of the Jupiter's poles. –9.3 mile/pixel resolution –Education & Public Outreach

Spacecraft Overview Spacecraft Mass 7992 pounds, 4 tons –Larger and more propellant than Galileo with its probe 3 Solar Arrays 8.7 feet x 29.5 feet, total area 650 ft 2 –15 kilowatts at Earth, 450 watts at Jupiter (3-4%) –50% more efficient then 20 years ago –All previous Jupiter “visits” used Plutonium RTGs Spin-stabilized 3 rpm, like Pioneer for pointing and control –Keeps pointed towards Sun Propulsion –Bi-propellant system, 4400 lb, 2 tons –145 lbf thrust main engine with a protective cover Titanium “Vault” to protect Electronics from Magnetic field –Weights 157 kg (346 lb) –Shields from electrons and protons –Testing difficult due to vacuum, LN2 temperatures and high energy particles –Exposure ~100 million Dental X-rays Propulsion System & Ti Vault In Denver Spacecraft Vacuum Test in Denver