Juno (space probe)
Juno (also Jupiter polar orbiters) is a planned space probe of NASA, which is to study the giant planet Jupiter from a polar orbit at least one year long. It is after new Horizons the second space probe of the new Frontiers of program of NASA and may thus at the most 700 million US Dollar cost. The probe, not later than to 30. June 2010 to start is (although another starting possibility is likewise considered at present in August 2011), is at present (conditions at the end of of 2005) in the planning phase and is afterwards with Lockheed Martin under direction of the project of the JPL to be built. Contrary to earlier space probes to the planet Jupiter will not possess Juno nuclear power supply, but by particularly efficient solar cells the necessary river to generate. However the use of solar cells is possible only in this special case, since Juno mostly is on a polar orbit favorable for sun power production outside of the strong radiation belts of the Jupiters. A mission to the moons of the Jupiters would be for example further dependent on a nuclear power supply and particularly radiation-resistant electronics.
the start of the probe is to take place either in June 2010 or in August 2011 on board Atlas a V (551 ) in Cape Canaveral. The probe will accomplish two years after the start Swing by - maneuvers at the earth, which it will accelerate toward Jupiter. The entire journey to the Jupiter will take up 5.2 years flying time. There arrived, Juno will occur a polar orbit with a Periapsis of 5000 km and a scan time of eleven days. The primary mission of the probe is to take about one year long and contain 32 of such orbits.
Juno will carry seven instruments and to the following tasks will dedicate themselves:
- Examination of the existence of a firm Jupiterkerns
- determination of the portion of water, ammonia and methane in the atmosphere
- study of convection and production of wind profiles in the atmosphere
- determination of the source of the Jupiter of magnetic field
- investigation of the polar Magnetosphäre.
The probe is equipped with the following instruments:
- Jovian Auroral distribution experiment (JADE)
- JADE will study the Aurora of the Jupiters, by loaded particles, as electrons and ions are measured, along the Magnetfeldlinien of the planet. The instrument is built by the Southwest Research of institutes (SwRI ).
- Juno Ultraviolet Spectrograph (UVS)
- UVS will take photographs of the Aurora in the ultraviolet light and will work at it together with JADE. The instrument is built by the Southwest Research of institutes (SwRI).
- Magnetometer (LIKES)
- a magnetometer to the study that of magnetic field. The instrument is built by the Goddard space Flight center and JPL.
- Microwave radiometer (MWR)
- microwaves a spectrometer for the measurement of ammonia and Wasseranteils in the Jupiteratmosphäre. The instrument is built by the JPL.
- Energetic Particle Detector (EPD)
- the instrument is built by the Applied Physics Labority John Hopkins University.
- the instrument is built by the University OF Iowa.
- a smaller camera, which is to take photographs of Jupiters cloud cover in the visible light. Besides it is possible that the camera will take photographs of jupiternahen moons, like IO or Amalthea. The instrument is built by Malin space Science of system.
Web on the left of
- Juno side at NASA (English)
- The Juno mission ton of Jupiter (English)
- JunoCam - camera of the Juno space probe (English)
see also: List of the unmanned space missions
painted missions: Jupiter Icy Moons orbiter