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NTS 3

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Positioning Navigation TimingGEOCOSPAR 2025-173ALaunched 8/13/2025
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Mission & Launch
Launch Mission
USSF-106
Launch Vehicle
Vulcan Centaur VC4S
Launch Date
8/13/2025
Orbit & Mass
Orbit Class
GEO
Altitude
35,439.5 km
Inclination
3.24 deg
Dry Mass
1,250 kg
Total Mass
1,250 kg
Payload Classification
Mission Type
Positioning Navigation Timing
Payload Category
NAV
Payload Class
D
Organizations
Operator
U.S. Space Force
Manufacturer
Northrop Grumman
Registry
COSPAR ID
2025-173A
Track
Mentions
86
All verified mentions of this spacecraft in source documents.
0.0-5.0
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The AFRL-funded navigation satellite NTS-3 is an experimental satellite that could transition to production using the same contract if the Space and Missile Systems Center chooses to buy it.

RelationshipsPlanCapabilityValue 4.0Sep 30, 2020Space Force buyers make recruiting pitch to tech companies
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NTS-3 will be deployed to geosynchronous orbit to supplement the military GPS constellation that operates from medium Earth orbit.

PlanCapabilityValue 4.0Sep 15, 2020Air Force Research Laboratory’s NTS-3 satellite to launch on ULA’s Vulcan

The Air Force Research Laboratory developed an experimental navigation satellite called Navigation Technology Satellite-3 (NTS-3).

CapabilityGeneralValue 4.0Sep 15, 2020Air Force Research Laboratory’s NTS-3 satellite to launch on ULA’s Vulcan

The 1,250-kilogram NTS-3 satellite is being built by L3Harris under an $84,000,000 contract awarded by the Air Force Research Laboratory in December 2018.

RelationshipsFinancialCapabilityValue 5.0Sep 15, 2020Air Force Research Laboratory’s NTS-3 satellite to launch on ULA’s Vulcan

NTS-3 aims to demonstrate that a spacecraft in geosynchronous orbit can supplement the Global Positioning System that operates from medium Earth orbit.

CapabilityGeneralValue 3.0Jul 31, 2020L3Harris cleared to begin production of Air Force NTS-3 navigation satellite

The NTS-3 spacecraft will broadcast experimental positioning, navigation, and timing signals that will be used to test anti-jam technologies to improve the resilience of GPS signals.

CapabilityGeneralValue 4.3Jul 31, 2020L3Harris cleared to begin production of Air Force NTS-3 navigation satellite

L3Harris will integrate the NTS-3 payload with an ESPAStar bus for a planned 2022 launch.

PlanCapabilityRelationshipsValue 4.0Jul 31, 2020L3Harris cleared to begin production of Air Force NTS-3 navigation satellite

The Space Enterprise Consortium selected L3Harris in 2018 for the $84,000,000 NTS-3 contract.

RelationshipsFinancialValue 4.7Jul 31, 2020L3Harris cleared to begin production of Air Force NTS-3 navigation satellite

Once deployed, NTS-3 will be operated by the Air Force Research Laboratory’s Space Vehicles Directorate.

RelationshipsGeneralValue 3.0Jul 31, 2020L3Harris cleared to begin production of Air Force NTS-3 navigation satellite

The NTS-3 contract includes options for the U.S. Air Force to procure up to nine satellites.

RelationshipsPlanValue 4.0Jul 6, 2020L3Harris developing a constellation of small spy satellites for U.S. Air Force

For the NTS-3 experiment, L3Harris is building a satellite that integrates its GPS navigation payload with a Northrop Grumman ESPAStar bus.

CapabilityRelationshipsValue 4.0Jul 6, 2020L3Harris developing a constellation of small spy satellites for U.S. Air Force

In December 2018 Harris Corp. was selected as the prime contractor for the NTS-3 experiment planned for launch in 2022.

RelationshipsPlanValue 4.0Jul 6, 2020L3Harris developing a constellation of small spy satellites for U.S. Air Force

The Navigation Technology Satellite-3 (NTS-3 or NT-3) PNT satellite is scheduled to launch in 2022.

PlanValue 4.0Jun 19, 2020Planting the seeds of technology for the future Space Force

L3Harris Space and Airborne Systems, based in Melbourne, Florida, will build NTS-3 using a Northrop Grumman ESPAStar bus.

RelationshipsCapabilityValue 4.6Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

NTS-3 is an experiment to demonstrate that a layer of smaller satellites in geosynchronous Earth orbit could supplement the medium Earth orbiting GPS constellation and improve the resiliency of the military’s positioning, navigation, and timing capabilities.

CapabilityGeneralValue 4.0Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

The Navigation Technology Satellite-3 (NTS-3) is an experimental navigation satellite developed by L3Harris for the U.S. Air Force that passed a preliminary design review on 2020-02-05.

PlanCapabilityGeneralValue 4.0Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

The Space and Missile Systems Center’s Space Enterprise Consortium selected L3Harris in 2018 for an $84,000,000 contract as the prime system integrator to design, develop, integrate, and test NTS-3, including ground mission applications.

RelationshipsCapabilityPlanValue 5.0Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

The 2018 contract for NTS-3 includes options for the Air Force to buy up to nine satellites.

RelationshipsPlanValue 4.0Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

The Air Force Research Laboratory plans to launch NTS-3 in 2022.

PlanValue 4.0Feb 5, 2020Air Force gives nod to L3Harris to continue development of NTS-3 navigation satellite

The Air Force Research Laboratory will launch the experimental PNT satellite NTS-3 in 2022.

PlanValue 4.0Mar 16, 2019Air Force experiment NTS-3 could point the way to the next generation of GPS