Polaris Intelligence
Polaris
Intelligence
About
Ctrl K
Sign in
© Polaris Intelligence 2026
PrivacyTermsAdmin

NTS 3

active
Positioning Navigation TimingGEOCOSPAR 2025-173ALaunched 8/13/2025
Admin Edit
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
Actions

The NTS-3 satellite integrates an agile positioning, navigation, and timing (PNT) payload onto a Northrop Grumman ESPAStar bus to provide a space platform for AFRL and partner organization experiments and integrated capability demonstrations.

CapabilityRelationshipsValue 4.6Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch
Page2of5

The NTS-3 team successfully generated signals on the actual spacecraft and received them with experimental GNSSTA user equipment earlier 2023-01.

CapabilityValue 3.5Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

The Department of the Air Force’s Navigation Technology Satellite-3 (NTS-3) Vanguard program reached a major milestone in preparation for the satellite’s launch in late 2023.

PlanValue 3.0Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

NTS-3 is managed by the AFRL Transformational Capabilities Office and has program partners in both the U.S. Space Force and the U.S. Air Force.

RelationshipsGeneralValue 3.4Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

AFRL and L3Harris are completing remaining intra-payload and payload-to-bus functional and performance tests for NTS-3, including the first radio frequency broadcast tests of the novel PNT signals.

CapabilityPlanValue 4.0Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

The U.S. Department of the Air Force designated NTS-3 in 2019 as one of the first three Vanguard programs to deliver innovative capabilities to the warfighter at an accelerated pace.

CapabilityPlanValue 3.6Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

L3Harris Technologies delivered the NTS-3 space vehicle to an Air Force Research Laboratory integration and test facility at Kirtland Air Force Base, New Mexico.

RelationshipsCapabilityValue 4.5Jan 26, 2023USAF’s NTS-3 Vanguard is now closer to a 2023 launch

An $84,000,000 experiment named Navigation Technology Satellite-3 (NTS-3) is scheduled to launch in mid to late 2023 to fly to geostationary Earth orbit and augment GPS positioning, navigation, and timing services.

PlanFinancialCapabilityValue 4.0Aug 29, 2022New head of AFRL space vehicles looking for talent to help push technology forward

L3Harris won an $84,000,000 contract from AFRL in 2018 to build NTS-3.

RelationshipsFinancialValue 5.0Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

NTS-3 will fly to a geostationary Earth orbit (GEO) in 2023.

PlanValue 4.0Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

NTS-3 is projected to launch on the USSF-106 mission planned by the U.S. Space Force.

PlanValue 4.0Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

NTS-3 was initially evaluated for placement in medium Earth orbit (MEO) before AFRL decided GEO would be a better location to assess multi-orbit PNT architecture benefits.

PlanCapabilityValue 3.5Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

Navigation Technology Satellite-3 (NTS-3) is funded by the Air Force Research Laboratory (AFRL).

FinancialRelationshipsValue 4.0Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

Once in geostationary orbit, NTS-3 would provide PNT services only over the United States to enable ease of access and installation of receivers in locations of interest.

CapabilityGeneralValue 3.5Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

NTS-3 will be used to augment the positioning, navigation, and timing (PNT) services currently provided by GPS satellites.

CapabilityGeneralValue 3.5Apr 9, 2022Air Force space experiment will seek to demonstrate multi-orbit satellite navigation

At its Central Florida location, L3Harris is developing and testing the experimental Navigation Technology Satellite-3 (NTS-3) for the U.S. Air Force Research Laboratory.

CapabilityPlanValue 4.3Sep 16, 2021L3Harris opens manufacturing facility in Indiana for DoD missile-defense satellites

The expanded Palm Bay production capability enables L3Harris to develop and test the experimental Navigation Technology Satellite-3 (NTS-3).

CapabilityPlanValue 4.0Aug 24, 2021Satellite Production Site Expansion By L3Harris Plus The Addition Of An Unclassified Satellite Line For Nat’l Defense

L3Harris is producing NTS-3 using a Northrop Grumman ESPAStar bus.

CapabilityRelationshipsValue 4.5Aug 9, 2021U.S. military doubles down on GPS despite vulnerabilities

NTS-3 was scheduled to launch in 2023.

PlanValue 3.0Aug 9, 2021U.S. military doubles down on GPS despite vulnerabilities

NTS-3 is expected to add resilience to military PNT architecture by adding a higher layer in geosynchronous Earth orbit.

PlanCapabilityValue 3.6Aug 9, 2021U.S. military doubles down on GPS despite vulnerabilities