Path to a KBO: Projected route of NASA’s New Horizons spacecraft toward 2014 MU69, which orbits in the Kuiper Belt about 1 billion miles beyond Pluto. Planets are shown in their positions on Jan. 1, 2019, when New Horizons is projected to reach the small Kuiper Belt object. NASA must approve an extended mission for New Horizons to study the ancient KBO.
NASA’s New Horizons spacecraft has successfully performed the last in a series of 4 targeting maneuvers that set it on course for a January 2019 encounter with 2014 MU69. This ancient body in the Kuiper Belt is more than a billion miles beyond Pluto; New Horizons will explore it if NASA approves an extended mission.
The 4 propulsive maneuvers were the most distant trajectory corrections ever performed by any spacecraft. The 4th maneuver, programmed into the spacecraft’s computers and executed with New Horizons’ hydrazine-fueled thrusters, started at approximately 1:15 p.m. EST on Wednesday, Nov. 4, and lasted just under 20 minutes.
The maneuvers didn’t speed or slow the spacecraft as much as they “pushed” New Horizons sideways, giving it a 128 mile/h nudge toward the KBO. That’s enough to make New Horizons intercept MU69 in just over 3 years.
Getting the data: Following the last in a series of four maneuvers targeting NASA’s New Horizons spacecraft toward Kuiper Belt object 2014 MU69, flight controller George Lawrence monitors spacecraft data as it streams into the New Horizons Mission Operations Center at the Johns Hopkins University Applied Physics Laboratory on Nov. 4, 2015. (Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)
“This is another milestone in the life of an already successful mission that’s returning exciting new data every day,” said Curt Niebur, New Horizons program scientist at NASA Headquarters in Washington. “These course adjustments preserve the option of studying an even more distant object in the future, as New Horizons continues its remarkable journey.”
The New Horizons team will submit a formal proposal to NASA for the extended mission to 2014 MU69 in early 2016. The science team hopes to explore even closer to MU69 than New Horizons came to Pluto on July 14, which was approximately 7,750 miles
“New Horizons is healthy and now on course to make the first exploration of a building block of small planets like Pluto, and we’re excited to propose its exploration to NASA,”said New Horizons Principal Investigator Alan Stern.
The KBO targeting maneuvers were the mission’s largest and longest, and carried out in a succession faster than any sequence of previous New Horizons engine burns. They were also incredibly accurate. The 1st 3 maneuvers were carried out on Oct. 22, 25 and 28. New Horizons, at 32,000 miles/ hour, was ~84 million miles beyond Pluto and nearly 3.2 billion miles from Earth. The spacecraft is currently 895 million miles from MU69. All systems remain healthy and the spacecraft continues to transmit data stored on its digital recorders from its flight through the Pluto system in July.
http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20151105
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