Atlas V N22 | CST-100 Starliner Crewed Flight Test
United Launch Alliance
Mission Status
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Mission Updates
Launch success.
Source →Liftoff.
Source →Official Webcast by NASA has started
Source →Tweaked T-0.
Source →Updated launch weather.
Source →GO for launch.
Source →Moving to the next window on June 5, TBC
Source →Next attempt NET June 2 confirmed.
Source →Weather 85% GO on June 2nd.
Source →Scrub for the day, next opportunity on June 2nd.
Source →Hold!
Source →Official Webcast by NASA has started
Source →Updated launch weather.
Source →Tweaked launch time.
Source →NET June 1.
Source →Delayed beyond May 25 without a new date.
Source →Delayed to May 25 to address spacecraft service module helium leak.
Source →Tweaked T-0.
Source →Slip to NET May 21 to resolve a small helium leak detected in the spacecraft’s service module.
Source →Delayed to NET May 17 for Centaur stage LOX pressure regulation valve replacement.
Source →NET May 10 EDT.
Source →Scrub due to Centaur LOX valve issue, next attempt TBD.
Source →Official Webcast by NASA has started
Source →Updated launch weather.
Source →Tweaked T-0.
Source →Weather 90% GO
Source →New launch time.
Source →NET May 6.
Source →Added planned launch time on May 1st.
Source →NET May 1
Source →Delay to NET early May due to ISS visiting vehicles schedule.
Source →NET April 22
Source →NET April 14, 2024.
Source →NET mid-April 2024.
Source →NET March 2024
Source →Standing down from the July CFT launch opportunity due to the discovery of new issues with the spacecraft's parachutes and flammability of tape used extensively.
Source →TBD July
Source →NET May
Source →NET April 2023
Source →NET February 2023
Source →NET July 21
Source →Mission Details
This is the first crewed test flight of Starliner spacecraft. It will carry NASA astronauts Barry Wilmore and Suni Williams to the International Space Station.
Rocket Configuration
The Atlas V N22 is a crew rated variant of the Atlas V 422 - it sports two solid motor strap on boosters with two liquid fueled stages. It will be primarly used to support NASA's Commercial Crew program by taking the CST-100 to orbit.