NASA's New Horizon does not want to go without a ship.
New Year's Eve, the New Horizon Spacecraft will be the planet flyby.
Ultima Thule asteroid or its official name (486958) 2014 MU69, more than six million kilometers from the Kuiper Belt.
New Horizons will fly 3,500 kilometers, passing through more than 50,000 kilometers.
NASA made direct corrections to space vehicles this week, despite the slightest change.
"It only lasted 27.2 seconds in 0.26 meters / second and executed a better space shipment, canceling a mistake of 300 km (180 miles) error in the routing error and moving about five seconds after our arrival," he said NASA in a statement.
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The secretive instructions on Flyby were sent to Christmas Day.
Other changes will be sent to New Horizons until 30 December, within 12 hours, for messages sent to the spacecraft.
"But we can not throw the engine again, that is, New Horizons will soon enter Encounter Mode, which does not allow the engine to burn," said NASA.
The meeting mode means that if there was a problem with the instructions sent from the Earth, it will take the packaging software and address all the problems, instead of re-entering the Earth.
NASA will take pictures of Ultima, but he does not know what to do.
"We hope that the ultimate planetary building is preserved in the best sample of a building block," NASA said.
"In fact, the Ultima should be a valuable window in the phases of the formation of the planet and the solar system was more than 4,500 million years ago."
Photos will be on the ground again on January 1st.
New Horizon has already had a stellar journey – in 2015, the dwarf planet was the first spacecraft in Pluto.
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