Minotaur IV — mission imagery
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TBD

EWS OD-1

Minotaur IVNorthrop Grumman Space SystemsSpace Launch Complex 8
Thursday, December 31, 2026 · 12:00 AM UTCAdd to Calendar

NextMission AnnouncedT-720:00:00

Time to launch

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DAYS
00
HRS
00
MIN
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Launch Window Confidence
46% — Uncertain

Vehicle

Minotaur IV

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The Minotaur IV launch system is derived from the Peacekeeper ICBM. The first three stages are taken directly from decommissioned Peacekeeper missiles. A fourth stage, the Orion-38, is...

Height23.9 m
LEO Payload1,735 kg
Launches18
Successes16

Provider

Northrop Grumman Space Systems

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USA • Founded 2015

Northrup Grumman Space Systems designs, builds and delivers space, defence and aviation-related systems to customers around the world. They aquired Orbital ATK in 2018 along with its launchers and ongoing missi...

Mission Brief

The Electro-Optical/Infrared Weather System (EWS) Operational Demonstration-1 (OD-1) is a weather satellite for the United States Space Force. It is a prototype satellite made by General Atomics that will be place in LEO for a three-year demonstration mission of new EO/IR sensor technologies to various US military branches, and to act as a stop-gap for Defense Department needs for weather data.

PayloadEWS OD-1
OrbitSun-Synchronous Orbit
CustomerNorthrop Grumman Space Systems
Stages4
PadSpace Launch Complex 8, Vandenberg SFB, CA, USA

Mission Timeline

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Mission Announced

Official mission announcement and payload assignment

T-720:00:00
12:00 AM UTC
  • Mission AnnouncedT-720:00:00
  • Vehicle RolloutT-48:00:00
  • Wet Dress RehearsalT-24:00:00
  • Launch Day PrepT-06:00:00
Site lock

Launch Site

Space Launch Complex 8, Vandenberg SFB, CA, USA

LAUNCH SITE
34.576°N, 120.632°W

Schedule History

No delays or schedule changes recorded.