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Televised Prelaunch Briefing Tomorrow for Landsat 9

Landsat 9 spacecraft lift and mate operations take place.
The Landsat 9 spacecraft is lifted for mating to the United Launch Alliance Atlas V rocket at Space Launch Complex 3 at Vandenberg Space Force Base in California on Sept. 15, in preparation for liftoff targeted for Sept. 27. Photo credit: USAF 30th Space Wing/Pedro Caril

NASA will hold a prelaunch briefing tomorrow, Sept. 25, at 1 p.m. PDT (4 p.m. EDT), for Landsat 9, the NASA and U.S. Geological Survey (USGS) joint mission to monitor Earth’s land and coastal regions.

Briefing participants are:

The United Launch Alliance Atlas V booster for NASA’s Landsat 9 mission is positioned inside the Vertical Integration Facility at Space Launch Complex 3 at Vandenberg Space Force Base in California.
The United Launch Alliance Atlas V booster for NASA’s Landsat 9 mission is positioned inside the Vertical Integration Facility at Space Launch Complex 3 at Vandenberg Space Force Base in California, prior to mating with the Landsat spacecraft. Photo credit: NASA/Randy Beaudoin
  • Thomas Zurbuchen, Associate Administrator, NASA Science Mission Directorate
  • Karen St. Germain, Director, NASA Earth Science Division
  • Tanya Trujillo, Assistant Secretary for Water and Science, Dept. of Interior
  • Michael Egan, Landsat 9 Program Executive, NASA Earth Science Division
  • Tim Dunn, NASA Launch Director, Launch Services Program
  • Scott Messer, Program Manager, United Launch Alliance
  • Addison Nichols, Weather Officer, Space Launch Delta 30

Watch the briefing live on NASA TV.

Meteorologists with the U.S. Space Force’s Space Launch Delta 30 predict a 90% percent chance of favorable weather for launch on Monday morning, with liftoff winds around 10 knots posing the main concern.

Launch coverage will begin at 10:30 a.m. PDT (1:30 p.m. EDT) on Sept. 27. You can follow the countdown milestones here on the blog and on the NASA website.

Stay connected with the mission on social media, and let people know you’re following it on Twitter, Facebook, and Instagram using the hashtag #Landsat and tag these accounts:

Twitter: @NASA, @NASAEarth, @NASA_Landsat, @NASASocial, @NASA_LSP, @NASA360, @SLDelta30
Facebook: NASA, NASA Earth, NASA LSP, SLDelta30
Instagram: NASA, NASAEarth, Vandenberg_AFB