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Otter

active
Technology DemonstrationLEOCOSPAR 2025-009QLaunched 1/14/2025
Admin Edit
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

Otter is tasked with performing an initial deorbit for one satellite in the SDA’s PWSA constellation and has options to perform additional deorbits.

PlanCapabilityValue 4.0Jan 21, 2026Latest News
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Starfish Space will launch an Otter spacecraft for the deorbit mission in 2027, and the Otter spacecraft can deorbit multiple satellites in a single flight.

PlanCapabilityValue 4.0Jan 21, 2026Starfish Wins SDA Deorbit-As-A-Service Contract

The Otter is an ESPA-class satellite servicing vehicle designed for autonomous rendezvous, proximity operations, and docking.

CapabilityGeneralValue 4.0Jan 21, 2026US Space Force Awards Starfish Space $52.5 Million for Proliferated LEO Deorbit Services

The Otter is approximately ten times smaller in mass than traditional satellite servicers and uses high-efficiency electric propulsion to execute high-precision maneuvers at a lower cost profile.

CapabilityGeneralValue 4.0Jan 21, 2026US Space Force Awards Starfish Space $52.5 Million for Proliferated LEO Deorbit Services

Starfish Space builds the Otter spacecraft servicing vehicle.

CapabilityValue 4.0Jan 21, 2026Latest News

Validation of the Nautilus mechanism during the Otter Pup 2 mission will be the final technical gate before the Otter begins its multi-year deorbiting campaign for the Space Force.

PlanCapabilityValue 4.0Jan 21, 2026US Space Force Awards Starfish Space $52.5 Million for Proliferated LEO Deorbit Services

The first operational Otter vehicles supporting the $52.5 million disposal contract are expected to launch in late 2026.

PlanFinancialGeneralValue 4.0Jan 21, 2026US Space Force Awards Starfish Space $52.5 Million for Proliferated LEO Deorbit Services

Under the contract, Starfish Space will use its Otter servicing vehicle to autonomously dock with and safely deorbit defunct satellites within the Proliferated Warfighter Space Architecture.

RelationshipsCapabilityLegalValue 4.4Jan 21, 2026US Space Force Awards Starfish Space $52.5 Million for Proliferated LEO Deorbit Services

Starfish’s upcoming Otter satellite servicing missions will be powered by CETACEAN and CEPHALOPOD software suite.

PlanCapabilityValue 4.0Dec 22, 2025Autonomous Rendezvous and Proximity Mission Completed

The OTTER spacecraft is a 3U CubeSat that SpaceX launched from the United States.

CapabilityPlanValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

OTTER uses one antenna to receive position signals from ships while its onboard camera acquires images to verify the reported locations.

CapabilityValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

At about six kilograms, OTTER falls into the nanosatellite class, defined for satellites up to ten kilograms.

CapabilityValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

Teams at the ground station will process and evaluate the data from OTTER.

CapabilityGeneralValue 2.3Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

The OTTER mission will operate for about two years in low Earth orbit before the satellite re-enters Earth's atmosphere.

PlanGeneralValue 3.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

During its planned two-year mission, OTTER will downlink data from ships' Automatic Identification System (AIS) along with camera imagery to a ground station.

PlanCapabilityValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

OTTER serves as a testbed for methods to design, build, and operate systems for monitoring marine activities from orbit.

CapabilityGeneralValue 3.5Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

DLR's Responsive Space Cluster Competence Center (RSC3) in Trauen, Lower Saxony, manages the OTTER mission and conducts research on responsive space concepts for maritime applications.

CapabilityGeneralValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

The OTTER spacecraft is equipped with an electric propulsion system to hasten its controlled destructive re-entry.

CapabilityValue 4.0Dec 5, 2025Small satellite mission targets maritime activity monitoring from orbit

The VLEO Otter mission aims to demonstrate the world’s first air-breathing spacecraft.

CapabilityPlanValue 3.5Nov 24, 2025DARPA Advances VLEO Mission with Redwire

DARPA awarded a $44 million contract to Redwire to advance its VLEO Otter mission.

RelationshipsFinancialPlanValue 4.5Nov 24, 2025DARPA Advances VLEO Mission with Redwire