Juno

The Juno mission was launched on 05 August 2011 at 16:25 UTC (12:25 p.m. EDT) from Cape Canaveral Air Force Station to study Jupiter from polar orbit for approximately one year beginning in 2016. The launch vehicle was an Atlas V 551 with a Centaur upper stage. The primary scientific objectives of the mission are to collect data to investigate: (1) the formation and origin of Jupiter's atmosphere and the potential migration of planets through the measurement of Jupiter's global abundance of oxygen (water) and nitrogen (ammonia); (2) variations in Jupiter's deep atmosphere related to meteorology, composition, temperature profiles, cloud opacity, and atmospheric dynamics; (3) the fine structure of Jupiter's magnetic field, providing information on its internal structure and the nature of the dynamo; (4) the gravity field and distribution of mass inside the planet; and (5) Jupiter's three-dimensional polar magnetosphere and aurorae. Juno carries eight experiments to achieve these objectives. Juno was the second mission chosen for the New Frontiers program.
  Juno made one Earth flyby on 9 October 2013 with a closest approach of about 559 km at 19:21 UT (3:21 p.m. EST). Juno was inserted into its initial 53.5 day Jupiter polar orbit on 5 July 2016, with confirmation of the completion of the 35 minute engine burn received at Earth at 03:53 UT (11:53 p,m, EDT, July 4). The science orbit will be a 14 day near-polar (90 +- 10 degrees) orbit with a perijove of roughly 1.05 Jovian radii (about 4200 km above the cloud tops at its closest) and an apojove of 39 Jovian radii. The spacecraft will be rotating at 2 rpm during the science orbit. Due to the intense radiation environment close to Jupiter, the mission will receive a critical dosage fairly rapidly and is planned to last for 37 orbits. At the end of the mission Juno will be deorbited and burn up in Jupiter's atmosphere.

• Jovian Auroral Distributions Experiment (JADE)
• Jupiter Energetic Particle Detector Instrument (JEDI)
• Jovian Infrared Auroral Mapper (JIRAM)
• JunoCam
• Magnetometer
• Microwave Radiometer (MWR)
• Ultraviolet Imaging Spectrometer (UVS)
• Waves

The Imaging Node archives JunoCam science data. JunoCam is a wide-angle camera
which will produce four-color images of Jupiter's cloud tops looking for convective clouds and lightning in thunderstorms.

• Mission Description
  
• Instrument and Spacecraft Description