Magnetometer (Juno)

[1] There two sets of MAG instrument suites, and they are both positioned on the far end of three solar panel array booms.

[1][2] The MAG instrument is designed to detect the magnetic field of Jupiter, which is one of the largest structures in the Solar System.

[7] The MAG instrument was delivered to Lockheed Martin Space Systems' facility in Denver, Colorado, United States for integration into the Juno spacecraft by NASA's Goddard Spaceflight Center (GFSC) in October 2010.

[6][8] MAG was overall designed and built at the NASA Goddard Space Flight Center (GFSC) in Greenbelt, Maryland.

The fluxgate magnetometer (FGM) is similar to previous instruments flown on spacecraft like the Voyagers, Magsat, Active Magnetospheric Particle Tracer Explorers, Mars Global Surveyor, etc.

[6] Magnetometers related to Juno include ones on MAVEN, MGS, Voyager, AMPTE, GIOTTO, CLUSTER, Lunar Prospector, MESSENGER, STEREO, and Van Allen Probes.

[11] At one point, JPL was working on including a Scalar Helium Magnetometer on Juno, in addition to the FGM and ASC suite.

NASA caption for this image: "... The two Magnetic Field Experiment (MAG) sensor suites can be seen on the 4-meter-long dedicated magnetometer boom in the foreground. The MAG boom is deployed in flight at the outer end of one of the spacecraft's three solar arrays. The outboard sensor suite consists of a Fluxgate Magnetometer (FGM) visible just above the 2 Advanced Stellar Compass (ASC) light baffles that look outward at a slight angle. The inboard MAG sensor suit is identical, but rotated 180 degrees and located 2 meters away. When deployed, the two sensor suites will be about 10 and 12 meters from the center of the spacecraft. The spacecraft is shown in launch configuration with solar arrays and MAG boom stowed. Image credit: NASA/JPL-Caltech/LMSS" [ 1 ]
Graphic of Jupiter's magnetosphere with Io plasma torus in yellow
Artist generated diagram showing the location of various instruments. MAG is on the lower right of this graphic