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    Countdown Update

    Upper level winds remain “red” because of a wind shear at 34,000 feet. During this 20-minute hold, managers and engineers will receive a weather briefing and continue to monitor SMAP and Delta II systems.

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    Upper Level Winds ‘Red’

    Upper level winds are “red” and the launch team will continue to monitor the status as the countdown progresses toward the planned launch of NASA’s Soil Moisture Active Passive spacecraft at 9:20 a.m. EST from Vandenberg Air Force Base in California. The U.S. Air Force Western Range has verified the range safety systems are operating …

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    Liquid Oxygen Loading Complete

    The United Launch Alliance Delta II rocket is fully fueled and ready to launch NASA’s Soil Moisture Active Passive spacecraft at 9:20 a.m. EST. The final commodity, liquid oxygen, has just been loaded into the Delta II first stage. The operation took 26 minutes, 12 seconds.

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    CubeSats Provide Small Payloads a Gateway to Space

    The ELaNa X payload comprises three Poly Picosatellite Orbital Deployers, or P-PODs, containing a total of four CubeSats. These four small satellites represent three separate missions: ExoCube, a space weather satellite consisting of three CubeSat units The GEO-CAPE ROIC In-Flight Performance Experiment, or GRIFEX, a technology validation mission also consisting of three CubeSat units FIREBIRD-II …

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    Liquid Oxygen Loading Begins

    Valves are opening and cryogenic liquid oxygen is about to begin flowing into the Delta II rocket’s first stage. After tanking, the occasional puff of gaseous oxygen will be visible outside the rocket’s midsection throughout the remainder of the countdown. This is normal; as the liquid oxygen warms, small amounts of it will boil off …

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    A Reliable Rocket with a Successful Past

    The Delta II family of rockets has a lengthy and successful flight history. NASA has relied on various configurations of the Delta II for a number of high-profile missions, such as the Earth-observing Aquarius and Orbiting Carbon Observatory-2, telescopes such as Kepler and WISE, and several Mars missions, including Mars Pathfinder and the Spirit and …

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