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NASA New Horizons Pluto

Speeds up

28 Jun, 2015

New Horizons fires its thrusters for 23 seconds speeding up about a half mile per hour in order to perfect its course through the Pluto system. Without the adjustment, the probe would have arrived 20 seconds late and 114 miles (184 kilometers) off-target from the spot where it will measure the properties of Pluto’s atmosphere. Those measurements depend on radio signals being sent from Earth to New Horizons at precise times as the spacecraft flies through the shadows of Pluto and Pluto’s largest moon, Charon. The probe is 16 million km (10 million miles) from the Pluto system and about 4.75 billion km (2.95 billion miles) from Earth.

This maneuver was perfectly performed by the spacecraft and its operations team. Now we’re set to fly right down the middle of the optimal approach corridor.