SpaceX is preparing to launch 29 Starlink satellites into low Earth orbit using its Falcon 9 rocket from Space Launch Complex 40 (SLC-40), as part of its efforts to expand global broadband coverage.
The launch window is scheduled for March 19 between 16:05 and 20:05 IST, with the mission on its 27th flight featuring a reusable booster to land the drone in the Atlantic Ocean.
Live broadcast details
A live webcast of the mission will begin approximately five minutes before launch. Viewers can tune in via:
Strength milestone
The first stage booster supporting this mission is making its 27th flight, underscoring the reusability of the Falcon 9 system. The booster has previously supported several major missions, including:
Post-boot operations
After stage separation, the booster is scheduled to land on a “Just Read the Instructions” drone located in the Atlantic Ocean. The recovery attempt is a key part of SpaceX’s cost-effective launch model.
Mission objective
The deployment of 29 Starlink satellites will further strengthen the Starlink constellation aimed at providing high-speed Internet connectivity worldwide, especially in remote and underserved areas.
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Falcon 9 countdown and detailed flight profile
SpaceX has outlined the exact countdown and flight sequence for its Falcon 9 mission carrying Starlink satellites, highlighting the highly choreographed nature of modern rocket launches.
The detailed timeline underscores SpaceX’s focus on precision, reusability and efficiency. Each milestone – from launch to satellite deployment – plays a key role in ensuring the success of the mission and expanding global Internet coverage through the Starlink network.
The final minutes before takeoff include critical refueling and system checks:
T-38:00 – The launch director gives approval to refuel
T-35:00 – Commencement of RP-1 (rocket fuel) and first stage liquid oxygen (LOX) loading
T-16:00 – Second phase of LOX loading begins
T-07:00 – Engine cooling process begins to prepare for ignition
T-01:00 – Final flight computer check and tank pressurization begins
T-00:45 – Final “go to launch” confirmation.
T-00:03 – Engine ignition sequence initiated
Separation of output and degree
Shortly after launch, the rocket passes key milestones during the ascent into space:
T+01:12 – Max Q, point of maximum aerodynamic stress
T+02:25 – Main engine disconnection (MECO) for the first stage
T+02:29 – Separation of the first and second stages
T+02:36 – Second engine ignition stage (SES-1)
T+02:58 – Payload fairing separation
Booster recovery operation
The reusable first stage makes a controlled return to Earth:
T+06:01 – Input burning begins
T+06:23 – The entrance burn ends
T+07:58 – Catches fire on landing
T+08:20 – Booster lands on a droneship in the Atlantic Ocean
Insertion into orbit and deployment of satellites
The second stage continues to carry the payload into orbit:
T+08:39 – Second Stage Engine First Shutdown (SECO-1)
T+52:10 – Second stage engine restart (SES-2)
T+52:11 – Final Engine Shutdown (SECO-2)
T+01:01:31 – Deployment of Starlink satellites
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