Launch success.
Update ↗
SpaceXLaunch Successful
SDA Tranche 1 Transport Layer E
Falcon 9 Block 5
Historical mission record
This page records Falcon 9 Block 5 | SDA Tranche 1 Transport Layer E and its reported outcome: Launch Successful. The date above is a historical record.
Source record updated . This is a source update, not a confirmed launch time.
Check the source: SpaceX ↗ · Launch Library ↗ · Flight Club ↗
The latest on this mission
What changed?
Mission status
Launch Successful
Status reported by the mission data provider.
LAUNCH SITEVandenberg SFB, CA, USA
Mission
Tranche 1 Transport Layer E is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites. The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance. This launch carries 21 satellites manufactured by York Space Systems.
- Launch vehicle
- Falcon 9 Block 5
- Mission type
- Government/Top Secret
- Destination orbit
- Polar Orbit
- Launch pad
- Space Launch Complex 4E
- Provider
- SpaceX
- Recovery
- Autonomous Spaceport Drone Ship, The Falcon 9 first stage B1103 has landed on ASDS OCISLY after its 4th flight. +1
The vehicle
Published configuration and flight history.
Launch vehicle
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.
- Height
- 70 m
- Diameter
- 3.65 m
- Stages
- 2
- Recorded launches
- 630
- First flight
- 2018-05-11
Recorded timing
This is a mission record, not an upcoming calendar appointment.
47 minute windowPublished target
WINDOW OPENS
WINDOW CLOSES
Target ·
The target marker shows its position within the published window. The schedule may change before launch.
Flight timeline
Planned sequence, not live telemetry. Times are relative to the launch target.
- T−00:38:00
GO for Prop Load
- T−00:35:00
Prop Load
- T−00:35:00
Stage 1 LOX Load
- T−00:16:00
Stage 2 LOX Load
- T−00:07:00
Engine Chill
- T−00:01:00
Tank Press
Show the full sequence (20 events)
- T−00:01:00
Startup
- T−00:00:45
GO for Launch
- T−00:00:03
Ignition
- T+00:00:00
Liftoff
- T+00:01:14
Max-Q
- T+00:02:29
MECO
- T+00:02:33
Stage 2 Separation
- T+00:02:41
SES-1
- T+00:03:21
Fairing Separation
- T+00:06:23
Entry Burn Startup
- T+00:06:46
Entry Burn Shutdown
- T+00:08:13
Stage 1 Landing Burn
- T+00:08:35
SECO-1
- T+00:08:37
Stage 1 Landing
Launch site & orbit
Vandenberg SFB, CA, USA
The mission in perspective
Launch site & orbit
Explore the launch pad, then pull back to see the shape of the destination orbit.
Understand this orbit
Coverage & sources
Links supplied by the mission data provider.
Coverage and times may change.
Explore on iPhone
Browse mission details and discover upcoming launches in Spacian.
Open mission in Spacian ↗