Follow the key events of the Falcon 9 rocket’s ascent to orbit with the Formosat 5 Earth observation satellite for Taiwan’s National Space Organization.
The 229-foot-tall (70-meter) rocket will lift off Saturday at 11:50 a.m. PDT (2:50 p.m. EDT; 1850 GMT) from Vandenberg Air Force Base in California.
Data source: SpaceX
T-0:00:00: Liftoff
After the rocket’s nine Merlin 1D engines pass an automated health check, the Falcon 9 is released from Space Launch Complex 4-East at Vandenberg Air Force Base, California.
T+0:01:09: Max-Q
The Falcon 9 rocket reaches Max Q, the point of maximum aerodynamic pressure. The first stage’s nine Merlin 1D engines produce about 1.7 million pounds of thrust.
T+0:02:28: MECO
The Falcon 9’s nine Merlin 1D engines shut down.
T+0:02:32: Stage 1 Separation
The Falcon 9’s first stage separates from the second stage moments after MECO.
T+0:02:39: Stage 2 Ignition
The second stage Merlin 1D vacuum engine ignites for an approximately six-and-a-half minute burn to guide the Formosat 5 satellite into orbit.
T+0:02:53: Fairing Jettison
The 5.2-meter (17.1-foot) diameter payload fairing jettisons once the Falcon 9 rocket ascends through the dense lower atmosphere. The 43-foot-tall fairing is made of two clamshell-like halves composed of carbon fiber with an aluminum honeycomb core.
T+0:08:45: Stage 1 Entry Burn
A subset of the first stage’s Merlin 1D engines ignite for an entry burn to slow down for landing. A final landing burn will occur just before touchdown.
T+0:09:17: SECO 1
The Merlin 1D vacuum engine turns off after placing the Formosat 5 satellite into its planned sun-synchronous orbit.
T+0:10:47: Stage 1 Landing
The Falcon 9 rocket’s first stage booster touches down on SpaceX’s drone ship in the Pacific Ocean.
T+0:11:18: Formosat 5 Separation
The Formosat 5 spacecraft deploys from the Falcon 9 rocket’s upper stage to begin its five-year Earth observation mission.
A heavy-lift Long March 5 rocket hurled a 9-ton Chinese spacecraft toward the moon Monday on a 23-day mission attempting to return lunar samples to Earth for the first time in 44 years.
This mission follows a similar model of processing used during the Rapid Response Trailblazer (RRT-1) mission, which saw the launch of the GPS 3 Space Vehicle 07 (SV-07) spacecraft on a Falcon 9 instead of a United Launch Alliance Vulcan rocket as originally planned.
After scrubbing a countdown Saturday to review sensor data, Rocket Lab launched its first mission of 2021 from New Zealand at 2:26 a.m. EST (0726 GMT) Wednesday. The company’s light-class Electron rocket carried a super-secret payload for OHB, a German-headquartered satellite manufacturer.
