March 9, 2026
Spaceflight Now
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop
  • Donate
Breaking News
  • [ March 7, 2026 ] NASA contract confirms selection of ULA’s Centaur 5 as new upper stage for the SLS rocket Artemis
  • [ March 6, 2026 ] SpaceX launches Falcon 9 rocket launch from Vandenberg SFB Sunday Falcon 9
  • [ March 5, 2026 ] Spanish launch startup PLD Space raises $209 million to scale its rocket production Miura 5
  • [ March 3, 2026 ] SpaceX launches 600th Starlink satellite of 2026 during predawn Falcon 9 rocket flight from Cape Canaveral Falcon 9
  • [ March 1, 2026 ] SpaceX launches 29 Starlink satellites on Falcon 9 rocket from Cape Canaveral Falcon 9

Live coverage: Atlas 5 countdown and launch journal

October 7, 2015 Justin Ray


(Launch webcast begins at 5:29 a.m. PDT)

Mission Status Center

Live coverage of the United Launch Alliance Atlas 5 rocket on the NROL-55 mission with a classified payload for the National Reconnaissance Office. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.

  • Atlas 5
  • AV-058
  • Mission Status Center
  • National Reconnaissance Office
  • NOSS
  • NRO
  • United Launch Alliance

Related Articles

Falcon 9

Live coverage: SpaceX prepares for station cargo launch

May 28, 2017 Spaceflight Now

A Falcon 9 rocket was raised into position at pad 39A on Sunday for a customary test firing of its nine first stage Merlin engines. The rocket is being readied for a launch Thursday with a Dragon capsule carrying supplies to the International Space Station.

Atlas 5

Timeline: Atlas 5/TDRS-M ascent events

August 15, 2017 Justin Ray

This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with NASA’s Tracking and Data Relay Satellite-M. Launch is scheduled for Friday at 8:03 a.m. EDT (1203 GMT).

Mission Reports

Live coverage: India’s PSLV climbs into space with navigation satellite

April 11, 2018 Stephen Clark

India’s Polar Satellite Launch Vehicle lifted off at 2234 GMT (6:34 p.m. EDT) Wednesday with the country’s ninth navigation satellite, bolstering a regional positioning and timing network after the loss of a navigation craft on a previous PSLV mission last year.

News Headlines

  • NASA contract confirms selection of ULA’s Centaur 5 as new upper stage for the SLS rocket
    March 7, 2026
  • SpaceX launches Falcon 9 rocket launch from Vandenberg SFB Sunday
    March 6, 2026
  • Spanish launch startup PLD Space raises $209 million to scale its rocket production
    March 5, 2026
  • SpaceX launches 600th Starlink satellite of 2026 during predawn Falcon 9 rocket flight from Cape Canaveral
    March 3, 2026
  • SpaceX launches 29 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    March 1, 2026
  • SpaceX launches 25 Starlink Satellites from the West Coast
    March 1, 2026
  • NASA announces major overhaul of Artemis moon program: “We’ve got to get back to basics”
    February 27, 2026
  • SpaceX Falcon 9 launches from Cape Canaveral with 29 Starlink satellites
    February 27, 2026
  • SLS rocket hauled back to VAB for repairs
    February 25, 2026
  • SpaceX launches 500th Starlink satellite in 2026 during Wednesday Falcon 9 flight
    February 25, 2026
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop
  • Donate

© 1999-2026 Spaceflight Now Inc