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Koreasat 6A

Falcon 9 Block 5

SpaceX

Launch Status
Success

Rocket Launch Videos

Weather Forecast During Launch

According to weather officials, there's a 70% chance of favorable weather conditions at the time of the launch. Officials are monitoring weather conditions with concerns related to Cumulus Cloud Rule.

Trajectory

View comprehensive details including the rocket's trajectory, velocity, altitude, thrust, and more at FlightClub.io.

Learn more about rocket launch trajectories

Rocket Launch Timeline

Enhance your rocket launch experience with a detailed timeline! From pre-launch preparations to post-launch milestones, a well-structured schedule ensures every step—payload prep, safety checks, and liftoff—runs smoothly. Stay informed and follow the action with precision.

View the launch timeline

T- 00 : 38 : 00 GO for Prop Load
Launch director verifies go for propellant load
T- 00 : 35 : 00 Stage 1 LOX Load
Start of liquid oxygen loading in the first stage
T- 00 : 35 : 00 Prop Load
Start of propelland loading
T- 00 : 16 : 00 Stage 2 LOX Load
Start of liquid oxygen loading in the second stage
T- 00 : 07 : 00 Engine Chill
Start of engine chilling
T- 00 : 01 : 00 Startup
The onboard computer takes control over the countdown and runs last checks
T- 00 : 01 : 00 Tank Press
Fuel tanks are pressurized to flight levels
T- 00 : 00 : 45 GO for Launch
Launch director verifies go for launch
T- 00 : 00 : 03 Ignition
Start of the engine ignition sequence
T+ 00 : 00 : 00 Liftoff
First upwards movement of the rocket
T+ 00 : 01 : 09 Max-Q
Maximum dynamic pressure
T+ 00 : 02 : 17 MECO
Cut-off of the main engine
T+ 00 : 02 : 21 Stage 2 Separation
Separation of the second stage from the first
T+ 00 : 02 : 25 Stage 1 Flip
Flip maneuver of the first stage
T+ 00 : 02 : 28 SES-1
First start of the second engine
T+ 00 : 02 : 34 Booster Boostback Burn Startup
Start of the booster boostback burn
T+ 00 : 03 : 08 Fairing Separation
Separation of the payload fairing
T+ 00 : 03 : 29 Booster Boostback Burn Shutdown
End of the booster boostback burn
T+ 00 : 06 : 28 Entry Burn Startup
Start of the atmospheric entry burn
T+ 00 : 06 : 51 Entry Burn Shutdown
End of the atmospheric entry burn
T+ 00 : 07 : 41 Stage 1 Landing Burn
Start of the first stage landing burn
T+ 00 : 08 : 03 SECO-1
First cut-off of the second engine
T+ 00 : 08 : 04 Stage 1 Landing
Landing of the first stage
T+ 00 : 34 : 35 Payload Separation
Final deployment of the payload from the rocket

Mission

Koreasat 6A

  • Type: Communications
  • Orbit: Geostationary Transfer Orbit
  • Launch Cost: $52,000,000

The Koreasat 6A spacecraft, built by Thales Alenia Space, will have 20 transponders for fixed satellite services and six for TV broadcasting to replace the Koreasat 6 launched in 2010.

Koreasat 6A will be based on the manufacturer’s Spacebus 4000B2 platform and is expected to weigh about 3.5 metric tons at launch. It will be designed to operate for at least 15 years.

Location

Launch Complex 39A

Kennedy Space Center, FL, USA

Find the best place to watch the launch from Florida

Launch Complex 39A has witnessed the launch of 199 rockets, including 198 orbital launch attempts. While Kennedy Space Center, FL, USA, has been the site for 257 rocket launches.

The John F. Kennedy Space Center, located on Merritt Island, Florida, is one of NASA's ten field centers. Since 1968, KSC has been NASA's primary launch center of American spaceflight, research, and technology. Launch operations for the Apollo, Skylab and Space Shuttle programs were carried out from Kennedy Space Center Launch Complex 39 and managed by KSC. Located on the east coast of Florida, KSC is adjacent to Cape Canaveral Space Force Station (CCSFS).

Rocket

SpaceX Falcon 9 Block 5

Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.

Learn more about the Falcon 9 Block 5

Landing

Core B1067

The Falcon 9 first stage B1067 has landed back at the launch site after its 23rd flight. Booster B1067 last launched 02/15/2025 and has seen 26 successful launches and landings. Falcon 9 Block 5 booster first used for the CRS-22 mission.

A sonic boom is likely to occur a few minutes after launch as the booster returns to the launch site. Be prepared for a loud but thrilling experience! Learn more about rocket launch sonic booms

Landing Zone 1 - LZ-1

LZ-1 Pad located at Cape Canaveral Space Force Station at the previous LC-13

Return to Launch Site - RTLS

A return to launch site usually means that after stage separation the booster flips and does a burn back towards the launch site, landing near where it initially launched from.

Agency

SpaceX

Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.

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Len Carr
Len Carr
4 months ago

The text under the “Landing” section indicates a RTLS but the flightclub.io graphic shows a landing out in the Atlantic.