--- title: Space Solutions - U.S.-Built GNSS for Low Earth Orbit description: Integration-ready GNSS receivers and antennas for LEO missions. U.S.-built hardware validated through launch for navigation, timing, and orientation. --- [Go Back Up](https://landing.javad.com/space-solutions#top) [![JAVAD Logo - Green and White_Proxy](https://landing.javad.com/hs-fs/hubfs/JAVAD%20Logo%20-%20Green%20and%20White_Proxy.png?width=250&height=63&name=JAVAD%20Logo%20-%20Green%20and%20White_Proxy.png "JAVAD Logo - Green and White_Proxy")](https://www.javad.com) # Flight-Proven GNSS for LEO ## With U.S.-Based Engineering Support JAVAD GNSS delivers GNSS receivers and antennas with flight heritage for LEO satellite missions, backed by US-based engineering support from integration through launch. When questions come up, you get our engineers, not a support ticket queue. That's what "in-house" means to us. [Explore LEO Hardware](https://landing.javad.com/space-solutions#TR-2S-Details) [Connect with an Engineer](https://landing.javad.com/space-solutions#Contact) ![Made-in-the-USA](https://landing.javad.com/hs-fs/hubfs/Made-in-the-USA.webp?width=100&height=100&name=Made-in-the-USA.webp) ### Manufactured in the USA ![Flight-heritage](https://landing.javad.com/hs-fs/hubfs/Flight-heritage.webp?width=100&height=100&name=Flight-heritage.webp) ### Proven Flight Heritage ![Anti-jamming-anti-spoofing](https://landing.javad.com/hs-fs/hubfs/Anti-jamming-anti-spoofing.webp?width=100&height=100&name=Anti-jamming-anti-spoofing.webp) ### Spoofing & Jamming Protection ![Built for Harsh Space Environments](https://landing.javad.com/hs-fs/hubfs/Rad-hardened.webp?width=100&height=100&name=Rad-hardened.webp) ### Built for Harsh Space Environments ![TR-2S-LEO-2026](https://landing.javad.com/hs-fs/hubfs/TR-2S-LEO-2026-1.webp?width=700&height=700&name=TR-2S-LEO-2026-1.webp) OEM GNSS Board 55 x 40 x 11 mm 20 g # TR-2S LEO Centimeter-Level GNSS Positioning for LEO Missions Designed for Low Earth Orbit applications requiring high-precision navigation, the TR-2S LEO delivers multi-constellation, multi-frequency GNSS performance with integrated spoofing and jamming detection, validated through launch vehicle environments. - Centimeter-Level Positioning in LEO - Integrated Spoofing & Jamming Detection - Space-Hardened, Radiation-Tolerant Design - Validated Through Launch Vehicle Environments [Download Datasheet](https://download.javad.com/sheets/TR-2S_LEO_Datasheet.pdf) [Learn More](https://landing.javad.com/tr2s-leo?hsLang=en) ![TR-DI-HDA-2026](https://landing.javad.com/hs-fs/hubfs/TR-DI-HDA-2026.webp?width=721&height=578&name=TR-DI-HDA-2026.webp) OEM GNSS Board 66 x 57 x 11 mm 31 g # TR-DI HDA Dual-Antenna GNSS Heading and Navigation for LEO Platforms The TR-DI HDA combines radiation-tolerant GNSS reception with dual-antenna heading and high-speed sensor interfaces, enabling robust navigation and orientation awareness for high-dynamics LEO missions. - Dual-Antenna GNSS Heading Capability - High-Dynamics GNSS Performance - Integrated Spoofing & Jamming Detection - Sensor-Ready Interfaces for Integrated Navigation [Download Datasheet](https://download.javad.com/sheets/TR-DI_HDA_Datasheet.pdf) ![SpaceAnt-Series-2026](https://landing.javad.com/hs-fs/hubfs/SpaceAnt-Series-2026.webp?width=734&height=578&name=SpaceAnt-Series-2026.webp) OEM GNSS Antennas 58 x 58 x 15 mm 62 g # SpaceAnt Series Space-Qualified GNSS Antennas for Reliable LEO Signal Tracking The SpaceAnt Series is a family of wide-band OEM GNSS antennas engineered for reliable signal tracking in the Low Earth Orbit environment. Designed to complement space-hardened GNSS receivers, SpaceAnt antennas provide a compact, space-ready construction to support precision navigation and timing throughout the mission lifecycle. - Wide-Band GNSS and L-Band Signal Support - Out-of-Band Rejection for RF Integrity - Space-Ready Design Validated Through Launch [Download SpaceAnt-G3 Datasheet](https://download.javad.com/sheets/SpaceAnt-G3_Datasheet.pdf) [Download SpaceAnt-G3T Datasheet](https://download.javad.com/sheets/SpaceAnt_G3T_Datasheet.pdf) Not Just Documentation ## Engineering Partnership Most GNSS vendors hand off an ICD and leave you to figure it out. We work differently. Our engineering team is available throughout your mission, from first integration questions through launch day and beyond. # Proven Heritage. Made in the USA. JAVAD GNSS OEM solutions are proudly made at our state-of-the-art manufacturing facility in San Jose, California, USA. [Take a Virtual Tour](https://www.javadems.com/explore-our-facility/) # Position, Navigation, & Timing for Space Systems - LEO observation satellites - Commercial and government constellations - Formation flying missions - Launch vehicle upper stages - High-dynamic space platforms ### Precise Orbit Determination (POD) High-accuracy GNSS observables enable precise satellite position and velocity estimation in real time and through post-processing. ### PVT (Position, Velocity, Time) Provides continuous position, velocity, and timing outputs to support onboard navigation, guidance, and spacecraft subsystems. ### Moving Base & Relative Navigation Enables relative positioning between satellites or reference objects for formation flying, rendezvous, and coordinated operations. ### Time Synchronization GNSS timing supports synchronization of onboard subsystems, payload operations, and inter-satellite activities. ![ACES Mission - ESA and JAVAD GNSS](https://landing.javad.com/hs-fs/hubfs/ACES%20Mission%20-%20ESA%20and%20JAVAD%20GNSS.png?width=800&height=444&name=ACES%20Mission%20-%20ESA%20and%20JAVAD%20GNSS.png) European Space Agency (ESA) ACES Mission ## Unlocking Precision Behind ESA's ACES Mission The Atomic Clock Ensemble in Space (ACES) is a European Space Agency mission that places two ultra-precise atomic clocks aboard the International Space Station (ISS). A core requirement of ACES is the precise determination and prediction of the ISS trajectory, which must be known continuously and accurately to meet distinct operational needs. The use of three JAVAD OEM GNSS receivers in a redundant architecture was foundational to mission function and integrity. | ![ESA_logo.svg](https://landing.javad.com/hs-fs/hubfs/ESA_logo.svg.png?width=175&height=64&name=ESA_logo.svg.png)   | ![AIRBUS_Logo](https://landing.javad.com/hs-fs/hubfs/AIRBUS_Logo.png?width=175&height=65&name=AIRBUS_Logo.png)   | | --- | --- |   [Read the Customer Story](https://landing.javad.com/hubfs/Customer%20Stories/ESA%20ACES%20-%20Customer%20Story.pdf?hsLang=en) ![ESA Vega Mission](https://landing.javad.com/hs-fs/hubfs/ESA%20-%20Section%20v2.png?width=800&height=444&name=ESA%20-%20Section%20v2.png) European Space Agency (ESA) Vega Mission ## JAVAD OEM Board Guides ESA Vega Mission A JAVAD OEM GNSS board is at the heart of the navigation system of the Vega space vehicle developed by the European Space Agency (ESA). ESA developed Vega to launch small satellites into low Earth orbit. It provides great flexibility of mission at an affordable cost and represents the European solution for space accessibility. ![header_logo](https://landing.javad.com/hs-fs/hubfs/header_logo.png?width=150&height=68&name=header_logo.png)   [Read the Customer Story](https://landing.javad.com/hubfs/Customer%20Stories/ESA%20Vega%20Launch%20-%20JAVAD%20Customer%20Story.pdf?hsLang=en) ![Gruyere Space Program - Pave Space](https://landing.javad.com/hs-fs/hubfs/GSP-JAVAD.webp?width=800&height=596&name=GSP-JAVAD.webp) Gruyère Space Program Pave Space ## High Precision and Stability with JAVAD The success of Colibri’s flights hinged on reliable navigation and control systems. The JAVAD GNSS TR-2S consistently maintained a 1cm fix throughout Colibri’s 100-meter flight, despite the harsh vibrations and dynamic flight conditions. ![Pave-Logo](https://landing.javad.com/hs-fs/hubfs/Pave-Logo.webp?width=250&height=125&name=Pave-Logo.webp)   [Read the Customer Story](https://landing.javad.com/hubfs/Customer%20Stories/Supporting%20Gruyere%20Space%20Program%20-%20JAVAD%20Customer%20Story.pdf?hsLang=en) ![OEM Evaluation Kit - JAVAD](https://landing.javad.com/hs-fs/hubfs/OEM%20Evaluation%20Kit%20-%20JAVAD.png?width=700&height=400&name=OEM%20Evaluation%20Kit%20-%20JAVAD.png) # Evaluation Kits Available Purchase a simple-to-connect evaluation kit and test JAVAD GNSS OEM boards. The kit features universal connection options and quick instruction for testing and development teams. [Request One Below](https://landing.javad.com/space-solutions#Contact) Contact # Let's Connect Schedule a production visit or start a conversation with our team by completing the form below. --- [![JAVAD Logo - Green and White_Proxy](https://landing.javad.com/hs-fs/hubfs/JAVAD%20Logo%20-%20Green%20and%20White_Proxy.png?width=2000&height=500&name=JAVAD%20Logo%20-%20Green%20and%20White_Proxy.png "JAVAD Logo - Green and White_Proxy")](https://www.javad.com) - [Products](https://www.javad.com/products) - [Applications](https://www.javad.com/applications) - [Support](https://www.javad.com/support) [Contact Us](https://www.javad.com/contact) ©JAVAD GNSS. All rights reserved. [Terms & Conditions](https://www.javad.com/terms-and-conditions/) | [Privacy Policy](https://www.javad.com/privacy-policy/)