MISSION OVERVIEW
Surveyor-Model was a dummy mass onbaord of Centaur AC-4, launched on 11 December 1964, which was to test the closed loop Honeywell guidance system and perform the first restart of cryogenic RL10A-3 engines in space.
LAUNCH DETAILS
VEHICLE
Atlas CentaurAGENCY
United States Air ForceMISSION
Surveyor Mass Model
MISSION TYPE
Test Flight
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Launch Complex 36ALAUNCH SITE
Cape Canaveral SFS, FL, USACOUNTRY
USA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 7f0c4ec0-c5e1-452a-be28-7b926c059acc
Reported date: Dec 11, 1964 at 14:25 UTC
Last synced: 30 seconds ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Atlas Centaur →
MANUFACTURER
Convair
VARIANT
Centaur
FLIGHTS
4
SUCCESSES
2
SUCCESS RATE
50%
The Atlas-Centaur was a US expendable launch vehicle derived from the SM-65 Atlas D missile. Launches were conducted from Launch Complex 36 at the Cape Canaveral Air Force Station in Florida.
FREQUENTLY ASKED QUESTIONS
When is the Atlas Centaur | Surveyor Mass Model launch?
The Atlas Centaur | Surveyor Mass Model is scheduled for Friday, December 11, 1964 at 2:25 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Surveyor Mass Model?
The Atlas Centaur | Surveyor Mass Model mission uses the Atlas Centaur rocket, manufactured by Convair. The Atlas Centaur has flown 4 times with a 50% success rate.
Where is the Atlas Centaur | Surveyor Mass Model launching from?
The launch takes place from Launch Complex 36A at Cape Canaveral SFS, FL, USA.
What orbit is Surveyor Mass Model going to?
The Surveyor Mass Model mission is targeting Low Earth Orbit.
Who is launching Surveyor Mass Model?
The Atlas Centaur | Surveyor Mass Model is operated by United States Air Force.
Can I watch the Atlas Centaur | Surveyor Mass Model launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 28, 2026 20:13 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:13 UTC
Launch date set: Dec 11, 1964 at 14:25 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 28, 2026 20:13 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 30 seconds ago
●Launch Library 230 seconds ago
Launch ID: 7f0c4ec0-c5e1-452a-be28-7b926c059acc
●Open-Meteo Weather21 minutes ago
Pad weather at 28.47, -80.54
