NASA's Juno Spacecraft in Orbit Around Mighty Jupiter

NASA’s Juno Spacecraft in Orbit Around Mighty Jupiter

Following a very nearly five-year trip to the close planetary system’s biggest planet, NASA’s Juno rocket effectively entered Jupiter’s circle amid a 35-minute motor blaze. Affirmation that the smolder had finished was gotten on Earth at 8:53 p.m. PDT (11:53 p.m. EDT) Monday, July 4.

“Autonomy Day dependably is something to celebrate, yet today we can add to America’s birthday another motivation to cheer – Juno is at Jupiter,” said NASA head Charlie Bolden. “Also, additionally American than a NASA mission going intensely where no shuttle has gone some time recently? With Juno, we will examine the questions of Jupiter’s gigantic radiation belts to dive profound into the planet’s inside, as well as into how Jupiter was conceived and how our whole nearby planetary group developed.”

Confirmation of a successful orbit insertion was received from Juno tracking data monitored at the navigation facility at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, as well as at the Lockheed Martin Juno operations center in Littleton, Colorado. The telemetry and tracking data were received by NASA’s Deep Space Network antennas in Goldstone, California, and Canberra, Australia.

“This is the one time I don’t mind being stuck in a windowless room on the night of the 4th of July,” said Scott Bolton, principal investigator of Juno from Southwest Research Institute in San Antonio. “The mission team did great. The spacecraft did great. We are looking great. It’s a great day.”

Preplanned events leading up to the orbital insertion engine burn included changing the spacecraft’s attitude to point the main engine in the desired direction and then increasing the spacecraft’s rotation rate from 2 to 5 revolutions per minute (RPM) to help stabilize it..

The burn of Juno’s 645-Newton Leros-1b main engine began on time at 8:18 p.m. PDT (11:18 p.m. EDT), decreasing the spacecraft’s velocity by 1,212 miles per hour (542 meters per second) and allowing Juno to be captured in orbit around Jupiter. Soon after the burn was completed, Juno turned so that the sun’s rays could once again reach the 18,698 individual solar cells that give Juno its energy.

“The spacecraft worked perfectly, which is always nice when you’re driving a vehicle with 1.7 billion miles on the odometer,” said Rick Nybakken, Juno project manager from JPL. “Jupiter orbit insertion was a big step and the most challenging remaining in our mission plan, but there are others that have to occur before we can give the science team the mission they are looking for.”

Over the next few months, Juno’s mission and science teams will perform final testing on the spacecraft’s subsystems, final calibration of science instruments and some science collection.

“Our official science collection phase begins in October, but we’ve figured out a way to collect data a lot earlier than that,” said Bolton. “Which when you’re talking about the single biggest planetary body in the solar system is a really good thing. There is a lot to see and do here.”

Juno’s principal goal is to understand the origin and evolution of Jupiter. With its suite of nine science instruments, Juno will investigate the existence of a solid planetary core, map Jupiter’s intense magnetic field, measure the amount of water and ammonia in the deep atmosphere, and observe the planet’s auroras. The mission also will let us take a giant step forward in our understanding of how giant planets form and the role these titans played in putting together the rest of the solar system. As our primary example of a giant planet, Jupiter also can provide critical knowledge for understanding the planetary systems being discovered around other stars.

The Juno spacecraft launched on Aug. 5, 2011 from Cape Canaveral Air Force Station in Florida. JPL manages the Juno mission for NASA. Juno is part of NASA’s New Frontiers Program, managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate. Lockheed Martin Space Systems in Denver built the spacecraft. The California Institute of Technology in Pasadena manages JPL for NASA.

Click me for more  information on the Juno mission 

Where is Juno?

NASA's Juno Spacecraft in Orbit Around Mighty Jupiter

Using NASA’s Eyes on the Solar System and simulated data from the Juno flight team you can ride onboard the Juno spacecraft in real-time at any moment during the entire mission.

NASA’s Eyes on the Solar System program is a Web-based tool to journey with NASA’s spacecraft through the solar system. The experience is available on a Mac or PC by downloading NASA’s Eyes.

NASA's Juno Spacecraft in Orbit Around Mighty Jupiter

NASA’s Eyes interactives require a one-time download of the app.

Click me for more information on the Eyes on Juno module

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