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Otter

active
Technology DemonstrationLEOCOSPAR 2025-009QLaunched 1/14/2025
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Mission & Launch
Launch Mission
Transporter-12
Launch Vehicle
Falcon 9 FT5
Launch Date
1/14/2025
Orbit & Mass
Orbit Class
LEO
Altitude
516.5 km
Inclination
97.45 deg
Dry Mass
10 kg
Total Mass
10 kg
Payload Classification
Mission Type
Technology Demonstration
Payload Category
TECH
Payload Class
D
Organizations
Operator
U.S. Navy
Manufacturer
U.S. Navy
Registry
COSPAR ID
2025-009Q
UN Registration
ST/SG/SER.E/1270
Track
Mentions
97
All verified mentions of this spacecraft in source documents.
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Actions

The phase 2 contract provides funding to complete manufacturing and deliver the VLEO Otter spacecraft.

RelationshipsFinancialPlanCapabilityValue 4.0Nov 24, 2025
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DARPA Advances VLEO Mission with Redwire

The Otter vehicle is based on Redwire's US-built SabreSat Orbital Drone.

CapabilityRelationshipsValue 3.6Nov 23, 2025Redwire to Deliver Spacecraft for DARPA Otter VLEO Demonstration

The DARPA contract is part of the Otter program, which aims to validate VLEO technology through a flight lasting more than a year at an orbital altitude between 90 and 250 km.

RelationshipsPlanCapabilityValue 4.3Nov 20, 2025Redwire Wins $44M DARPA Contract for VLEO Demo

The Otter mission will demo the world’s first air-breathing spacecraft and advance next-generation orbital capabilities.

CapabilityGeneralValue 3.2Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

The Otter spacecraft leverages the design of Redwire’s SabreSat platform.

CapabilityRelationshipsValue 4.0Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

Otter is built on Redwire’s U.S.-built SabreSat Orbital Drone.

CapabilityRelationshipsValue 3.5Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

The phase 2 contract provides funding to complete manufacturing and deliver the Otter spacecraft for the mission.

RelationshipsFinancialValue 4.0Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

The Otter spacecraft will showcase innovative software and hardware systems designed to extend spacecraft life in low-altitude orbital environments.

CapabilityGeneralValue 3.0Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

Redwire Corporation has been awarded a $44 million phase 2 contract to advance DARPA's Otter very Low Earth Orbit mission.

RelationshipsFinancialPlanValue 5.0Nov 20, 2025Redwire awarded $44 million DARPA contract to advance VLEO orbit mission

The Defense Advanced Research Projects Agency (DARPA) awarded Redwire a $44 million phase 2 contract to advance an air-breathing spacecraft in the Otter Very Low Earth Orbit (VLEO) mission.

RelationshipsPlanCapabilityFinancialValue 4.8Nov 19, 2025Latest News

The spacecraft for the Otter mission is built on Redwire’s SabreSat platform, which is described as an orbital drone.

CapabilityGeneralValue 4.0Nov 19, 2025Latest News

The Otter mission is tasked with collecting data for air-breathing electric propulsion technologies, which are designed to turn low-density air into propulsion needed to stay in VLEO.

CapabilityGeneralValue 3.0Nov 19, 2025Latest News

The phase 2 contract will fund the completion of manufacturing and delivery of the spacecraft for the Otter mission.

RelationshipsPlanFinancialValue 4.0Nov 19, 2025Latest News

Otter missions for Intelsat and the U.S. Space Force are projected to launch to geostationary orbit in 2026.

PlanRelationshipsValue 4.0Nov 13, 2024Satellite-servicing startup Starfish Space raises $29 million

Starfish Space’s first two Otter missions for Intelsat and the U.S. Space Force will launch to geostationary orbit in 2026 and begin providing services thereafter.

PlanRelationshipsValue 4.0Nov 13, 2024Starfish Space secures million$$ in new funding to advance Otter development

The Starfish Otter servicing vehicle will dock with a retired Intelsat satellite in geostationary graveyard orbit during a checkout campaign before docking with and servicing an operational Intelsat satellite.

PlanCapabilityGeneralValue 4.0Jun 26, 2024Intelsat, Starfish Space Reach Deal for Satellite Servicing Mission

Otter will use its onboard propulsion system to maintain a client satellite in operational geostationary orbit to provide additional years of life.

CapabilityValue 3.6Jun 26, 2024Intelsat, Starfish Space Reach Deal for Satellite Servicing Mission

Intelsat signed a contract with Starfish Space for a Starfish Otter servicing vehicle to provide life extension services to an Intelsat geostationary satellite beginning in 2026.

RelationshipsPlanValue 4.6Jun 26, 2024Intelsat, Starfish Space Reach Deal for Satellite Servicing Mission

As the prime contractor for the DARPA Otter program, Redwire will build the SabreSat bus and develop and integrate mission-related technologies.

RelationshipsCapabilityValue 4.5Jun 17, 2024Redwire wins contract for VLEO demonstration

Redwire received a DARPA contract to serve as the prime mission integrator for the Otter program to develop an air-breathing satellite that demonstrates novel electric propulsion in very low Earth orbit (VLEO).

RelationshipsPlanCapabilityGeneralValue 4.6Jun 17, 2024Redwire Awarded DARPA Prime Contract for SabreSat Spacecraft Very Low-Earth Orbit Demonstration