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RKLBFYI
Curveball mission patch
Mission

Curveball

Last Updated: yesterday
SUCCESS
Orbit Achieved
Unknown
Vehicle
Electron
Launch Site
LC-2
Orbit
Low Earth Orbit
Profile
Government/Top Secret
Thursday, June 11, 2026 08:00 AM UTC Wallops Island, Virginia, USA

Mission State

Schedule
Date and time on file

This mission currently has a dated launch window in the tracker.

Coverage
No stream on file

No livestream or replay link is currently attached to this mission.

Launch Updates

4
  1. Launch success.

  2. Liftoff.

  3. Hold, awaiting propellant losding,

    by Cosmic_Penguin Source: x.com
  4. Added launch per air space closure notices (see also https://twitter.com/EShoreSpaceflt/status/2062237394133246409).

    by Cosmic_Penguin Source: fly.faa.gov

Updates via Launch Library 2 (The Space Devs).

Name Origin

AI

HASTE stands for Hypersonic Accelerator Suborbital Test Electron, Rocket Lab's dedicated hypersonic testbed. 'Curveball' refers to the mission's objective of testing hypersonic flight maneuvers, reflecting the unpredictable nature of the vehicle's trajectory.

"Curveball"

Mission Overview

Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program, details TBD. Note: Despite reported as a strictly sub-orbital launch program, this launch was cataloged by the USSF to have left 2 rocket stages in a 200 km, 40° very low Earth orbit by the US Space Force. The payload was not cataloged and may have been deliberately de-orbited.

Technical Details

Vehicle
Electron
Rocket Lab launch vehicle
Launch Site
Launch Complex 2
LC-2 · Wallops Island, Virginia, USA
Target Orbit
Low Earth Orbit
Planned deployment regime
Mission Profile
Government/Top Secret
Mission architecture
Payload Mass
Classified
Booster Recovery
Not attempted
First-stage recovery outcome
Pad Turnaround
Since the previous launch from this pad
Customer
Unknown
Mission customer

Launch data cross-checked against Wikipedia.

Space-Object Catalog

2026-130
Flight 89 · Orbital · Success
ObjectOperatorBuilt byMassOrbitStatusNORAD
Electron 89 Stage 2
2026-130A · Stage
Rocket Lab USA
Rocket Lab USA
Electron St2
250 kg189 × 204 km · 40.0°Decayed 2026-06-1269476
Electron 89 Kick Stage
2026-130B · Stage
Rocket Lab USA
Rocket Lab USA
Kick Stage
40 kg198 × 199 km · 40.0°Decayed 2026-06-1769477
Catalog data: J. McDowell, planet4589.org (CC BY 4.0) and CelesTrak