Launch success
Update ↗
Historical mission record
This page records Falcon 9 Block 5 | TRACERS 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 ↗ · The University of Iowa ↗ · Launch Library ↗
What changed?
Status reported by the mission data provider.
Mission
NASA's Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission, consisting of two identical satellites that will orbit Earth in tandem (one following the other), will help understand magnetic re-connection and its effects in Earth’s atmosphere. Magnetic re-connection occurs when activity from the Sun interacts with Earth’s magnetic field. By understanding this process, scientists will be able to better understand and prepare for impacts of solar activity on Earth. Hitchhiking small satellites: * Athena EPIC (Economical Payload Integration Cost) * Polylingual Experimental Terminal (PExT) * Relativistic Electron Atmospheric Loss (REAL)
- Launch vehicle
- Falcon 9 Block 5
- Mission type
- Heliophysics
- Destination orbit
- Sun-Synchronous Orbit
- Launch pad
- Space Launch Complex 4E
- Provider
- SpaceX
- Recovery
- Return to Launch Site, The Falcon 9 booster B1081 has returned to the launch site at LZ-4 after its 16th flight. +1
The vehicle
Published configuration and flight history.

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
- 537
- First flight
- 2018-05-11

Recorded timing
This is a mission record, not an upcoming calendar appointment.
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 (32 events)
- T−00:01:00
Startup
- T−00:00:45
GO for Launch
- T−00:00:03
Ignition
- T+00:00:00
Liftoff
- T+00:01:12
Max-Q
- T+00:02:13
MECO
- T+00:02:17
Stage 2 Separation
- T+00:02:21
Stage 1 Flip
- T+00:02:24
SES-1
- T+00:02:30
Booster Boostback Burn Startup
- T+00:02:56
Fairing Separation
- T+00:03:26
Booster Boostback Burn Shutdown
- T+00:06:04
Entry Burn Startup
- T+00:06:21
Entry Burn Shutdown
- T+00:07:12
Stage 1 Landing Burn
- T+00:07:46
Stage 1 Landing
- T+00:08:02
SECO-1
- T+00:50:44
SES-2
- T+00:50:47
SECO-2
- T+00:54:30
Payload Separation
- T+00:54:50
Payload Separation
- T+01:05:40
SES-3
- T+01:05:41
SECO-3
- T+01:30:07
SES-4
- T+01:30:08
SECO-4
- T+01:34:26
Payload Separation
Launch site & orbit
Vandenberg SFB, CA, USA
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 ↗