Starlink Group 3-5

https://i.imgur.com/4OVxqkS.png

April 27th 2023, 13:40

Launch Date

Space Launch Complex 4E

Vandenberg Space Force Base

Of Course I Still Love You

Droneship

B1061-13

Falcon 9 Block 5

SpaceX is targeting Thursday, April 27 at 6:40 a.m. PT (13:40 UTC) for a Falcon 9 launch of 46 Starlink satellites to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. The first stage booster supporting this mission previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, and three Starlink missions. Following stage separation, Falcon 9’s first stage will land on the Of Course I Still Love You droneship stationed in the Pacific Ocean.

Media

Starlink Mission

SpaceX

Timeline

All Times Are Approximate

Countdown

  • T-00:38:00

    SpaceX Launch Director verifies go for propellant load

  • T-00:35:00

    RP-1 (rocket grade kerosene) loading begins

  • T-00:35:00

    1st stage LOX (liquid oxygen) loading begins

  • T-00:16:00

    2nd stage LOX loading begins

  • T-00:07:00

    Falcon 9 begins engine chill prior to launch

  • T-00:01:00

    Command flight computer to begin final prelaunch checks

  • T-00:01:00

    Propellant tank pressurization to flight pressure begins

  • T-00:00:45

    SpaceX Launch Director verifies go for launch

  • T-00:00:03

    Engine controller commands engine ignition sequence to start

  • T+00:00:00

    Falcon 9 liftoff

Launch, Landing, and Deployment

  • T+00:01:12

    Max Q (moment of peak mechanical stress on the rocket)

  • T+00:02:27

    1st stage main engine cutoff (MECO)

  • T+00:02:30

    1st and 2nd stages separate

  • T+00:02:36

    2nd stage engine starts (SES-1)

  • T+00:02:47

    Fairing deployment

  • T+00:06:13

    1st stage entry burn begins

  • T+00:06:32

    1st stage entry burn ends

  • T+00:08:01

    1st stage landing burn begins

  • T+00:08:24

    1st stage landing

  • T+00:08:38

    2nd stage engine cutoff (SECO-1)

  • T+00:52:44

    2nd stage engine starts (SES-2)

  • T+00:52:46

    2nd stage engine cutoff (SECO-2)

  • T+00:59:53

    Starlink satellites deploy