UNITED STATES AIR FORCE

Titan 34D Transtage | Mercury 12

SUCCESSSep 2, 1988 at 12:05 UTCTitan 34D Transtage →
PADSpace Launch Complex 40
SITECape Canaveral SFS, FL, USA →
ORBITMedium Earth Orbit
TYPEGovernment/Top Secret

ELINT satellite focussed on communications intelligence

MISSION
Mercury 12
MISSION TYPE
Government/Top Secret
TARGET ORBIT
Medium Earth Orbit
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 9e13de16-8772-443d-8cb1-9c502b3ceacb
Reported date: Sep 2, 1988 at 12:05 UTC
Last synced: 16 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
Lockheed Martin
VARIANT
34D Transtage
FLIGHTS
7
SUCCESSES
7
SUCCESS RATE
100%

The Titan 34D was a United States expendable launch vehicle used to launch a number of satellites for military applications.

When is the Titan 34D Transtage | Mercury 12 launch?
The Titan 34D Transtage | Mercury 12 is scheduled for Friday, September 2, 1988 at 12:05 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 Mercury 12?
The Titan 34D Transtage | Mercury 12 mission uses the Titan 34D Transtage rocket, manufactured by Lockheed Martin. The Titan 34D Transtage has flown 7 times with a 100% success rate.
Where is the Titan 34D Transtage | Mercury 12 launching from?
The launch takes place from Space Launch Complex 40 at Cape Canaveral SFS, FL, USA.
What orbit is Mercury 12 going to?
The Mercury 12 mission is targeting Medium Earth Orbit.
Who is launching Mercury 12?
The Titan 34D Transtage | Mercury 12 is operated by United States Air Force.
Can I watch the Titan 34D Transtage | Mercury 12 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.
Mar 29, 2026 05:34 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 05:34 UTC
Launch date set: Sep 2, 1988 at 12:05 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 29, 2026 05:34 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 16 minutes ago
Launch Library 216 minutes ago
Launch ID: 9e13de16-8772-443d-8cb1-9c502b3ceacb
Open-Meteo Weather1 day ago
Pad weather at 28.56, -80.58

Mission Profile

Mercury 12 was a Titan 34D Transtage mission operated by United States Air Force that lifted off from Space Launch Complex 40, Cape Canaveral SFS, FL, USA on September 2, 1988. The flight carried its payload on a government/top secret mission to Medium Earth Orbit. The launch was a success.