Atlas V 541 | NROL-42 — launch time, webcast & live countdown

Atlas V 541 | NROL-42 launched on Sun, Sep 24, 2017, 05:49 AM UTC — a United Launch Alliance mission.

Launch SuccessfulUnited Launch Alliance

Lifted offNET Sep 2017

NET Sun, Sep 24, 2017, 05:49 AM UTC

Live coverage

Watch the webcasts

3 streams available — switch between the provider’s feed, X and others.

Mission profile

Government/Top SecretMission type

Elliptical OrbitOrbit

Flight simulation

A representative gravity-turn climb for Atlas V 541 to Elliptical Orbit. Illustrative model — not this mission’s live telemetry.

Mission timeT+0:00

Altitude0.0 km

Velocity0.00 km/s

PhaseLiftoff

T+0:00 / 8:00

SimulatedRepresentative Atlas V 541 ascent profile — illustrative model, not this mission’s live telemetry.

The mission

Classified payload for the U.S. National Reconnaissance Office.

Around this launch

No news linked to this launch yet

As coverage publishes, deduplicated articles about this mission will appear here.

Good to know

What time does Atlas V 541 | NROL-42 launch?

Atlas V 541 | NROL-42 is scheduled to lift off Sun, Sep 24, 2017, 05:49 AM UTC.

Where can I watch Atlas V 541 | NROL-42?

Watch the official live webcast embedded on this page — it goes live shortly before liftoff.

Who is launching Atlas V 541 | NROL-42?

Atlas V 541 | NROL-42 is an United Launch Alliance mission flying on a Atlas V 541.

Where does Atlas V 541 | NROL-42 launch from?

It lifts off from Space Launch Complex 3E, Vandenberg SFB, CA, USA.

Aurora

Tuning into the cosmos…