LeoLabs now provides tailored collision avoidance services directly to satellite owner-operators. When, where, and how you need it.

LeoLabs Collision Avoidance is comprised of a set of unique web services that offer satellite operators unparalleled access to high accuracy conjunction alerts and risk trending information. Built for operational automation and scalability, these powerful web services enable rapid task execution and efficient operational integration for constellations of all sizes.

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LeoLabs Collision Avoidance is provided as a web-based subscription service and includes the following features:

  • Continuous search and identification of close approach events based on LeoLabs’ tracking data and operator definitive ephemerides
  • Streaming service delivers CDMs to subscribers as they are generated
  • On-demand screening of user-provided ephemerides for maneuver planning, future mission design, and anomaly resolution
  • Automated increased sensor tasking and access to data products for secondary objects in high-risk events
  • Ingestion of third-party CDMs into LeoLabs Collision Avoidance, with automatic event-matching and data reporting
  • Detailed conjunction analysis reports combining all available data sources (LeoLabs, owner-operator ephemerides, and third-party) with high cadence delivery of CDMs plus tools to monitor and visualize risk evolution and sensitivity

Collision Avoidance FAQs

Organizations subscribing to the LeoLabs Collision Avoidance will receive conjunction notifications for their satellites, including real-time “streaming” data products accessible via RESTful APIs for efficient integration into operational mission architectures, and access to robust web tools for analyzing and visualizing conjunction event risk.


Yes, LeoLabs Collision Avoidance supports both continuous screenings using operator-provided definitive ephemerides, as well as on-demand screenings for test or candidate ephemerides with results returned typically within 30 seconds. Ephemeris uploads may be done programmatically and automated for more efficient satellite operations. Operator ephemeris screenings are performed against the LeoLabs object catalog, as well as ephemerides provided by other operators.


You will receive updates in real-time as new data is collected and processed. Our system generates a new CDM with every new state vector update on either object involved. Typically, this occurs once per radar pass or multiple times per day. For well-tracked objects, with three radars we currently generate 20-60 CDMs per conjunction event over an eight-day screening period. This number will increase further as we add more radars to our global network.


When our system detects high-risk conjunction events involving user satellites, the secondary object is automatically tasked for increased prioritization for future radar passes. This frequently leads to improved tracking quality of the object, with lowered uncertainties and a more accurate assessment of risk for the event. Users can see precisely when secondary objects were tasked by our system, and even submit additional tasking requests on-demand.


LeoLabs Collision Avoidance also provides users with direct access to data products for secondary objects, including state vectors and ephemerides with full covariance matrices.


Absolutely! While LeoLabs Collision Avoidance functions as a stand-alone commercial service for spaceflight safety, we believe that the more high-quality data is available to our users, the better. We encourage our customers to continue using conjunction alerts provided by the 18th SPCS and incorporate them into the platform.


LeoLabs can directly ingest third-party CDMs on an operator’s behalf and incorporate them into LeoLabs Collision Avoidance. Our system automatically identifies the conjunction event and correlates it with the same event detected independently in our system, aggregating all available sources of information into consolidated conjunction analysis reports. By combining ephemeris and CDM data from LeoLabs, 18th SPCS, and owner-operators into a single platform, no other solution provides a more complete system for conjunction risk assessment.


Got a question that's not listed here? Contact us at sales@leolabs.space and we'll be glad to help.

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