• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Skip to footer
  • NEWS:
  • SatNews
  • SatMagazine
  • MilSatMagazine
  • SmallSat News
  • |     EVENTS:
  • SmallSat Symposium
  • Satellite Innovation
  • MilSat Symposium
  • SmallSat Europe

SatNews

Satellite Industry Intelligence Since 1983

Subscribe
  • LATEST
  • SatNews Events
  • Magazines
  • Calendar
  • Subscribe
  • Missions & Constellations
    • Exploration & Science Missions
    • In-Orbit Servicing & Orbital Operations
    • LEO Constellations
    • Mission Autonomy & Onboard Systems
    • Mission Deployments & Manifests
    • Navigation & PNT
    • SmallSat
    • Spacecraft & Payload Technology
    View All in Missions & Constellations →
    SES Space & Defense and Starlab Partner on O3b mPOWER Space-to-Space Relay ArchitectureSES Space & Defense and Starlab Partner on O3b mPOWER Space-to-Space Relay Architecture
    Artemis II Pilot Advocates Stepwise Return to Moon via Equatorial LandingsArtemis II Pilot Advocates Stepwise Return to Moon via Equatorial Landings
    Thales CEO Confirms Progression on EU’s Multi-Billion Euro IRIS² Sovereign Satellite ConstellationThales CEO Confirms Progression on EU’s Multi-Billion Euro IRIS² Sovereign Satellite Constellation
    Viasat Deploys Reflector and Boom Assembly on ViaSat-3 F3 Ahead of In-Orbit TestingViasat Deploys Reflector and Boom Assembly on ViaSat-3 F3 Ahead of In-Orbit Testing
  • Business
    • Contracts & Commercial Deals
    • Earnings & Financial Reporting
    • Events & Conferences
    • Funding & Venture Capital
    • Market Forecasts
    • Mergers & Acquisitions
    • Personnel Moves & Appointments
    View All in Business & Finance →
    Impulse Space Unveils In-House Electra Electric Propulsion System for Orbital ManeuveringImpulse Space Unveils In-House Electra Electric Propulsion System for Orbital Maneuvering
    EchoStar Faces Mounting Financial Pressure on Hughes Satellite Unit Amid Corporate ReorganizationEchoStar Faces Mounting Financial Pressure on Hughes Satellite Unit Amid Corporate Reorganization
    Optical Zonu Debuts Miniature Ku-Band RF-over-Fiber Transmitter for Space-Constrained Defense PlatformsOptical Zonu Debuts Miniature Ku-Band RF-over-Fiber Transmitter for Space-Constrained Defense Platforms
    STMicroelectronics Reports Q2 2026 Earnings Growth Driven by AI Data Centers and Satellite DemandSTMicroelectronics Reports Q2 2026 Earnings Growth Driven by AI Data Centers and Satellite Demand
  • Defense
    • Counterspace & ASAT
    • Defense Budgets & Procurement
    • ISR & Reconnaissance
    • MILSATCOM
    • Missile Warning & Defense
    • National Security Programs
    • Space Domain Awareness
    View All in Military & Defense →
    Space Force Awards $287 Million Software Contract to Sphinx Defense for Strategic SATCOM Ground SegmentSpace Force Awards $287 Million Software Contract to Sphinx Defense for Strategic SATCOM Ground Segment
    L3Harris Signs Multi-Year Framework Agreement to Quadruple THAAD Propulsion ProductionL3Harris Signs Multi-Year Framework Agreement to Quadruple THAAD Propulsion Production
    GAO Report Warns Space Force Must Improve Personnel Metrics to Support Fleet ExpansionGAO Report Warns Space Force Must Improve Personnel Metrics to Support Fleet Expansion
    NNSA Delivers Fifth Next-Generation Global Burst Detector Payload to U.S. Space Force for GPS IntegrationNNSA Delivers Fifth Next-Generation Global Burst Detector Payload to U.S. Space Force for GPS Integration
  • Gov
    • Export Controls & Compliance
    • International Space Agreements
    • National Space Policy
    • Space Law & Treaties
    • Space Sustainability & Debris Policy
    • Space Traffic Management / Debris Removal
    View All in Government & Regulation →
    FCC Approves Upper C-Band Order, Allocating $5.6 Billion to SES and $504 Million to EutelsatFCC Approves Upper C-Band Order, Allocating $5.6 Billion to SES and $504 Million to Eutelsat
    GSMA Endorses Abuja Declaration to Advance Satellite Spectrum Reform and Launch ATLAS UmojaGSMA Endorses Abuja Declaration to Advance Satellite Spectrum Reform and Launch ATLAS Umoja
    UK Space Agency Unveils £62 Million Domestic Space Fund and Strategic Partnership with Space FloridaUK Space Agency Unveils £62 Million Domestic Space Fund and Strategic Partnership with Space Florida
    NewOrbit Urges Targeted UK Sovereign Allocation Toward Very Low Earth Orbit Capabilities Following £62M Government Space FundingNewOrbit Urges Targeted UK Sovereign Allocation Toward Very Low Earth Orbit Capabilities Following £62M Government Space Funding
  • Launch
    • Launch Providers
    • Launch Schedule & Calendars
    • Launch Sites & Infrastructure
    • Rocket Technology & Vehicles
    View All in Launch →
    SpaceX Targets First Starship Upper Stage Tower Catch for Flight 14SpaceX Targets First Starship Upper Stage Tower Catch for Flight 14
    L3Harris Delivers Four RS-25 Core Stage Engines to NASA for Crewed Artemis III Lunar MissionL3Harris Delivers Four RS-25 Core Stage Engines to NASA for Crewed Artemis III Lunar Mission
    Commercial Launch Providers Advance Next-Generation Heavy and Medium-Lift Vehicle Milestones Ahead of 2026 DebutsCommercial Launch Providers Advance Next-Generation Heavy and Medium-Lift Vehicle Milestones Ahead of 2026 Debuts
    SpaceX Limits Future Commercial Rideshare Bookings Past 2028 Amid Severe Manifest SaturationSpaceX Limits Future Commercial Rideshare Bookings Past 2028 Amid Severe Manifest Saturation
  • Software
    • Autonomous Ground Operations
    • Data Processing & AI/ML
    • Digital Twins & Modeling
    • Ground Segment & Teleports
    • Mission Planning & Simulation
    • Space Systems Software Engineering
    • Spectrum & Licensing
    View All in Software Automation & Ground Systems →
    Astrolight Advances End-to-End Lasercom Network to Address Orbital Bandwidth and Spectrum BottlenecksAstrolight Advances End-to-End Lasercom Network to Address Orbital Bandwidth and Spectrum Bottlenecks
    Intellian Unveils CM100 GMDSS Terminal Built for Iridium Certus 100 Safety NetworkIntellian Unveils CM100 GMDSS Terminal Built for Iridium Certus 100 Safety Network
    NASA Joins Federal Genesis Mission Initiative to Process 150 Petabytes of Space Data via AI ArchitecturesNASA Joins Federal Genesis Mission Initiative to Process 150 Petabytes of Space Data via AI Architectures
    IHI Corporation and Kuva Space Partner to Evaluate Japanese Sovereign Hyperspectral ConstellationIHI Corporation and Kuva Space Partner to Evaluate Japanese Sovereign Hyperspectral Constellation
  • Services & Apps
    • Climate & Environmental Monitoring
    • Disaster Response & Security Mapping
    • Earth Observation & Imaging
    • Maritime & Aviation Satcom
    • Satellite Communications
    View All in Services & Applications →
    Resecurity Joins Space ISAC to Expand Cyber Threat Intelligence Across Space AssetsResecurity Joins Space ISAC to Expand Cyber Threat Intelligence Across Space Assets
    Telespazio Deploys S/X-Band Antenna in the Azores to Expand Global Ground Station NetworkTelespazio Deploys S/X-Band Antenna in the Azores to Expand Global Ground Station Network
    Amazon Files FCC Application for 5,105-Satellite Constellation to Enable Direct-to-Device Mobile ServicesAmazon Files FCC Application for 5,105-Satellite Constellation to Enable Direct-to-Device Mobile Services
    FCC Proposes Opening Unlicensed Bluetooth and Wi-Fi Bands for Space-Based CommunicationsFCC Proposes Opening Unlicensed Bluetooth and Wi-Fi Bands for Space-Based Communications

SpaceX launches Space Development Agency’s 1DES Prototype Satellite the first of 12 risk reduction satellites

June 24, 2025

The Space Development Agency today announced the successful launch from Vandenberg Space Force Base, California, of the first prototype among 12 risk reduction satellites comprising the Tranche 1 Demonstration and Experimentation System (T1DES) constellation that will demonstrate tactical data delivery to warfighter platforms to support capabilities like targeting, and missile warning and tracking of advanced missile threats. 

The prototype satellite will support integration with tactical satellite communication (TACSATCOM) system capabilities from low Earth orbit. The launch also serves as a pathfinder for York Space Systems’ LX-CLASS satellite platform, which is slated for use in other existing award agreements between SDA and York.

“T1DES will demonstrate mission payloads and configurations for potential proliferation through future tranches of the Proliferated Warfighter Space Architecture in an effort to lower latency of tactical data delivery and enhance beyond line-of-sight targeting capability,” said SDA Director Derek Tournear. “We’re very pleased to see this prototype space vehicle launch four months ahead of the original T1DES baseline schedule and before the first launch of Tranche 1’s operational space vehicles.” 

The launch, which took place Monday, June 23, on SpaceX’s Falcon 9 rocket under the Transporter 14 rideshare mission, carried to orbit SDA’s single risk reduction space vehicle referred to as T1DES Proto or by the York Space Systems’ name, Dragoon. 

The remaining 11 T1DES satellite vehicles, planned for launch in fiscal year 2026, will conduct demonstrations and experimentation of TACSATCOM, advanced waveforms, and Integrated Broadcast Service (IBS) capabilities, which are key for future connectivity of joint warfighters around the globe.

About the Space Development Agency. As part of the U.S. Space Force, SDA is recognized as DOD’s constructive disruptor for space acquisition. SDA will accelerate delivery of needed space-based capabilities to the joint warfighter to support terrestrial missions through development, fielding, and operation of the Proliferated Warfighter Space Architecture. For more information on SDA, contact [email protected] or visit https://www.sda.mil.  

Filed Under: Exploration & Science Missions, Launch Providers

Primary Sidebar

Coverage

  • Missions & Constellations
  • Business & Finance
  • Military & Defense
  • Launch
  • Software Automation & Ground Systems
  • Government & Regulation
  • Services & Applications

Most Read Stories

  • AST SpaceMobile Finalizes Assembly of Next-Generation BlueBirds for August SpaceX Launch
  • SpaceX Controlled-Deorbit Report Discloses Decommissioning of 260 Starlink Satellites Over Six Months
  • SpaceX Files FCC Application for 100,000 Third-Generation Starlink Satellites
  • EchoStar’s Dish DBS Initiates Prepackaged Chapter 11 Restructuring to Resolve Impending Senior Note Maturities
  • BNP Paribas Outlines Steep Regulatory Obstacles in SpaceX Mobile Integration Strategy

Secondary Sidebar

Footer

 

Satnews is a leading provider of satellite news, events, publications, research and other satellite industry information in both commercial and military enterprises worldwide.

Stories By Category

  • Business & Finance
  • Government & Regulation
  • Launch
  • Military & Defense
  • Missions & Constellations
  • Services & Applications
  • Software Automation & Ground Systems
  • Spectrum & Licensing
  • Startups & NewSpace Business

About Us

  • Leadership & Editorial Team
  • SatNews History
  • Free Satnews Subscription
  • SatNews Events
  • Magazines

Navigation

  • Latest Stories
  • Magazines
  • Events
  • Contact
  • Cookie & Privacy Policy for Satnews

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.
x
Sign up Now (For Free)
Access daily or weekly satellite news updates covering all aspects of the commercial and military satellite industry.
Invalid email address
Notify Me Regarding ( At least one ):
We value your privacy and will not sell or share your email or other information with any other company. You may also unsubscribe at anytime.

Click Here to see our full privacy policy.
Thanks for subscribing!