Launch Time Now 8:35 a.m. EST; Weather Now 90 Percent ‘Go’

Today’s launch of NASA’s CYGNSS spacecraft aboard an Orbital ATK Pegasus XL rocket now is scheduled for 8:35 a.m. EST. The launch window extends to 9:21 a.m. The weather outlook has improved to a 90 percent chance of favorable conditions at launch time, with cumulus clouds the primary concern. Weather currently is “green” on all Eastern Range and user constraints.

Live updates from the countdown begin here on the blog and on NASA TV at 7 a.m.

The Pegasus XL rocket is an air-launched vehicle that begins its flight after it is dropped from Orbital ATK’s modified L-1011 aircraft, “Stargazer,” which will take off from the Skid Strip runway at Cape Canaveral Air Force Station and carry the rocket to its release point above the Atlantic Ocean an altitude of approximately 39,000 feet.

So, for those visiting or living in the Central Florida area who are looking for viewing suggestions, this will be a tough launch to see outside, and viewing online and on television is recommended.