Atlas LV-3B — mission imagery
Back to launches
Failure

Mercury-Atlas 3

Atlas LV-3BNational Aeronautics and Space AdministrationSpace Launch Complex 14
Tuesday, April 25, 1961 · 04:15 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Atlas LV-3B

Profile →

Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with...

Height59.7 m
LEO Payload18,850 kg
Launches147
Successes122

Provider

National Aeronautics and Space Administration

Profile →

USA • Founded 1958

The National Aeronautics and Space Administration is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and...

Mission Brief

Uncrewed test flight of the Mercury program. The launch proceeded normally until about T+20 seconds when the pitch and roll sequence failed to initiate and the vehicle instead just continued flying straight upward, requiring early termination of the flight.

PayloadMercury-Atlas 3
OrbitSuborbital
CustomerMercury
Stages2
PadSpace Launch Complex 14, Cape Canaveral SFS, FL, USA
WeatherNo formal weather concerns published, temperature not reported

Mission Timeline

14 / 14100%

Ground vector

Launch site

Site locked

Space Launch Complex 14

Cape Canaveral SFS, FL, USA

Global range
SITE LOCK
Latitude
28.491°N
Longitude
80.547°W

Range Weather

Launch commit criteria

0%
GO
ConstrainedNo active constraints
Weather Rules

No formal weather rule concerns published.

Primary concern
None published
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

04:15 PM UTC - 04:15 PM UTC

Delay History

1
Apr 25Apr 25Failure → Failure

Pitch and roll sequence failed to initiate.