No cool stuff but update for my fellow nerds...
On July 6 they powered up 5 of the 9 payloads (unless there is more that's not public). The rest will be powered up by the end of the month.
"We are in our planned 53.4 day orbit. Now we are focusing on preparing for our fourth and final main engine burn, which will put us in our 14-day science orbit on October 19.”
The next time Juno’s orbit carries it close by the planet will be on Aug. 27. The flyby is expected to provide some preliminary science data.
“We had to turn all our beautiful instruments off to help ensure a successful Jupiter orbit insertion on July 4,” said Scott Bolton, Juno principal investigator from the Southwest Research Institute in San Antonio. “But next time around we will have our eyes and ears open. You can expect us to release some information about our findings around September 1.”
So ya... we have to wait for the good stuff.
Pretty standard though as they have to do a system checkout, lock in their orbit and power on the instruments in a safe fashion especially since Jupiter's orbit is more dangerous than any other satellite has flown. Here is a look at their 9 instruments:
Microwave radiometer (MWR) - The microwave radiometer comprises six antennas mounted on two of the sides of the body of the probe. They will perform measurements of electromagnetic waves on frequencies in the microwave range: 600 MHz, 1.2, 2.4, 4.8, 9.6 and 22 GHz, the only microwave frequencies which are able to pass through the thick Jovian atmosphere. The radiometer will measure the abundance of water and ammonia in the deep layers of the atmosphere up to 200 bar pressure or 500 to 600 km deep. The combination of different wavelengths and the emission angle should make it possible to obtain a temperature profile at various levels of the atmosphere. The data collected will determine how deep the atmospheric circulation is.
Jovian Infrared Auroral Mapper (JIRAM) - The spectrometer mapper JIRAM, operating in the near infrared (between 2 and 5 μm), conducts surveys in the upper layers of the atmosphere to a depth of between 50 and 70 km where the pressure reaches 5 to 7 bars. JIRAM will provide images of the aurora in the wavelength of 3.4 μm in regions with abundant H3+ ions. By measuring the heat radiated by the atmosphere of Jupiter, JIRAM can determine how clouds with water are flowing beneath the surface. It can also detect methane, water vapor, ammonia and phosphine. It was not required that this device meets the radiation resistance requirements.
Magnetometer (MAG) - Many satellites use a magnetometer for attitude determination and correction but here is what it does for Juno... The magnetic field investigation has three goals: mapping of the magnetic field, determining the dynamics of Jupiter's interior, and determination of the three-dimensional structure of the polar magnetosphere. The magnetometer experiment consists of the Flux Gate Magnetometer (FGM), which will measure the strength and direction of the magnetic field lines, and the Advanced Stellar Compass (ASC), which will monitor the orientation of the magnetometer sensors.
Gravity Science (GS) - The purpose of measuring gravity by radio waves is to establish a map of the distribution of mass inside Jupiter. The uneven distribution of mass in Jupiter induces small variations in gravity all along the orbit followed by the probe when it runs closer to the surface of the planet. These gravity variations drive small probe velocity changes. The purpose of radio science is to detect the Doppler effect on radio broadcasts issued by Juno toward Earth in Ka band and X band, which are frequency ranges that can conduct the study with fewer disruptions related to the solar wind or the ionosphere.
Jovian Auroral Distributions Experiment (JADE) - The energetic particle detector JADE will measure the angular distribution, energy, and the velocity vector of ions and electrons at low energy (ions between 13 eV and 20 KeV, electrons of 200 eV to 40 KeV) present in the aurora of Jupiter. On JADE, like JEDI, the electron analyzers are installed on three sides of the upper plate which allows a measure of frequency three times higher.
Jovian Energetic Particle Detector Instrument (JEDI) - Pretty sure they threw Jovian in front just to get this acronym.
...The energetic particle detector JEDI will measure the angular distribution and the velocity vector of ions and electrons at high energy (ions between 20 keV and 1 MeV, electrons from 40 to 500 keV) present in the polar magnetosphere of Jupiter. JEDI has three identical sensors dedicated to the study of particular ions of hydrogen, helium, oxygen and sulfur.
Radio and Plasma Wave Sensor (Waves) - Looks like to measure the ability for communications for future missions no doubt as well get an idea of the atmosphere's environment... This instrument will identify the regions of auroral currents that define Jovian radio emissions and acceleration of the auroral particles by measuring the radio and plasma spectra in the auroral region.
Ultraviolet Imaging Spectrograph (UVS) - UVS will record the wavelength, position and arrival time of detected ultraviolet photons during the time when the spectrograph slit views Jupiter during each turn of the spacecraft. Using a 1024 × 256 micro channel plate detector, it will provide spectral images of the UV auroral emissions in the polar magnetosphere.
JunoCam (JCM) - A visible light camera/telescope, included in the payload to facilitate education and public outreach.
It will operate for only seven orbits around Jupiter because of the planet's damaging radiation and magnetic field. ...sure it's not just for us but who cares what their reason is, this is the fun cool stuff! Who doesn't want close-ups of Jupiter? SpacePr0n Cam is probably not a media friendly name.