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Solar Orbiter

    Solar Orbiter Embarks on Ambitious Mission to Face the Sun

    Liftoff of the Atlas V rocket with the Solar Orbiter spacecraft from Space Launch Complex 41 at Cape Canaveral Air Force Station, Florida.

    The Solar Orbiter spacecraft is heading toward the Sun after a late-night launch from Florida's Space Coast aboard a United Launch Alliance (ULA) Atlas V rocket. The vehicle lifted off from Space Launch Complex 41 at Cape Canaveral Air Force Station at 11:03 p.m. EST on Sunday, Feb. 9. After a nominal ascent, the spacecraft …

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    Solar Arrays Deployed

    Illustration of Solar Orbiter

    Solar Orbiter's solar arrays have deployed and the spacecraft is power-positive. Solar Orbiter launched atop a United Launch Alliance Atlas V rocket at 11:03 p.m. EST from Space Launch Complex 41 at Florida's Cape Canaveral Air Force Station. Solar Orbiter is an international collaborative mission between the European Space Agency (ESA) and NASA. The spacecraft …

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    Solar Orbiter Update

    Solar Orbiter graphic

    The Solar Orbiter spacecraft team from the European Space Agency has been communicating with the spacecraft, which is confirmed to be in the right position. Deployment of the solar arrays is the next major milestone.

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    Signal Acquired

    Illustration of Solar Orbiter following launch, with solar arrays and antennas deployed.

    The team has received the signal from the Solar Orbiter spacecraft. Solar Orbiter is an international collaborative mission between the European Space Agency (ESA) and NASA. The spacecraft will observe the Sun with high spatial resolution telescopes and capture observations in the environment directly surrounding the spacecraft to create a one-of-a-kind picture of how the …

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    Spacecraft Separation: Solar Orbiter Flying Solo

    Solar Orbiter graphic

    The Solar Orbiter spacecraft is flying on its own now after a successful liftoff and ascent aboard a United Launch Alliance Atlas V rocket and Centaur upper stage. The next critical milestone is the acquisition of signal from the spacecraft.

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    Centaur’s Final Burn Complete; Spacecraft Separation Coming Up

    The Centaur's main engine has completed its second and final burn, positioning the Solar Orbiter spacecraft for the transfer orbit it needs in order to head toward the Sun and begin its mission. Standing by for separation of Solar Orbiter from the vehicle in about three minutes. Following separation, the team will wait to hear …

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    Coast Phase Continues

    Still image from an animation depicting the Centaur upper stage, with the Solar Orbiter spacecraft still attached, during the coast phase.

    As the Centaur upper stage continues its coast phase, its onboard reaction control thrusters are firing periodically to keep propellants settled in the bottom of their tanks in anticipation of the start of the Centaur's second and final burn.

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    First Centaur Main Engine Cutoff

    Solar Orbiter graphic

    The first burn of the Centaur upper stage is complete and the vehicle has entered a coast phase of about half an hour. At the conclusion of the coast phase, the Centaur's engine will ignite again for an approximately seven-minute burn, followed by another short coast. Separation of the Solar Orbiter spacecraft from the Centaur …

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    Centaur Burn Underway; Payload Fairing Jettisoned

    A portion of the Sun fills most of the left side of the image. On the right against the backdrop of space, Solar Orbiter, with two long panels protruding from each side of a silver box, and antenna attached to the top, back, bottom left, and bottom right, is slightly turned toward the star.

    The first of two burns for the Centaur upper stage is underway following burnout and separation of the Atlas booster. This is an approximately eight-minute burn. The payload fairing, having protected the spacecraft in the early minutes of flight, has separated and fallen away as planned.

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