ULA Reschedules Delta IV Heavy Launch for Jan. 19

United Launch Alliance Delta IV Heavy. (Credit: NASA/Johns Hopkins APL/Ed Whitman)

Vandenberg Air Force Base, Calif. Jan. 15, 2019 (ULA PR) – The United Launch Alliance Delta IV Heavy carrying the NROL-71 mission has been scheduled for Saturday, Jan. 19 from Space Launch Complex-6 at Vandenberg Air Force Base in California at 11:05 a.m. PST.

  • Lee

    So much for ULA’s vaunted “on-time launch record”.

  • WhoAmI

    Before it was scheduled just after dusk, so was hoping I’d see some a light show in the early evening from the sun hitting the vapor trail left behind by the boosters. Now, it isn’t as appealing to even remind myself to look up at just after 11am to look for evidence of the launch. 🙁

  • Larry J

    Due to the highly classified nature of this launch, we don’t really know if the delay was due to a problem with the booster, a problem with the payload, or a combination of both. The original scrub was due to an issue on the booster but that doesn’t mean that the entire delay is for that reason.

  • duheagle

    True. But the reported problem with the rocket was a hydrogen leak. Those can be tricky to find and tricky to fix. Hydrogen, like helium, is a good escape artist.

  • windbourne

    in fact, better than helium. Helium, other than low temp, is non-corrosive.
    H2, is destructive to just about everything.