Conjunction Assessment
From a raw alert to a maneuver you can trust
A conjunction assessment tool watches for close approaches between your spacecraft and other tracked objects, then gives you the means to act on them. Valar's CDM processing ingests alerts from Space-Track and EU SST, classifies each by risk, and lets you recompute probability of collision with your own state vector instead of trusting the originator's estimate alone.
This page is for satellite operators and mission operations leads evaluating collision avoidance software, particularly teams managing frequent conjunctions across a constellation, whether you're standing up space traffic monitoring for the first time or replacing manual, spreadsheet-driven triage with automation.
Secondary object
COSMOS 2251 DEB
Miss distance
2,847m
PoC
3.2E-06
TCA
18h 42m
Inside Conjunction Assessment
What's inside Conjunction Assessment
Risk classification is the first triage pass on every incoming alert, but Conjunction Assessment covers everything from ingestion through to evaluating a maneuver's effect on every other threat in your schedule.
Risk classification
High
Medium
Low
Every alert is scored by probability of collision and miss distance against configurable thresholds, then color-coded so operators can triage at a glance.
Recomputed risk assessment
Combine your own spacecraft state vector from the last 30 days with the secondary object data in the latest alert to recompute probability of collision, miss distance, relative velocity, and Mahalanobis distance, saved directly into that conjunction's trend analysis.
Import & export
Import conjunction data messages in .cdm, .xml, or .txt format from any source, alongside automatic ingestion from Space-Track and EU SST, so every alert lands in one place regardless of where it originated.
Future impact evaluation
Before committing to a maneuver, see its effect on every other upcoming conjunction for that spacecraft: a side-by-side table of pre- and post-maneuver miss distance, probability of collision, and time of closest approach.
Trend analysis
Every recomputed alert for a conjunction is tracked over time, so a chart of miss distance and probability of collision shows whether a threat is closing, opening, or holding steady as new tracking data arrives.
CAM Optimization
Finding the maneuver worth flying
Every gray dot is a candidate maneuver Valar evaluated. The red line is the Pareto frontier: candidates where no other option cuts more collision risk for the same or less delta-V.
A parametric sweep across delta-V and maneuver direction produces dozens of candidate burns for a single conjunction. Pareto filtering narrows that field to the ones actually worth considering: candidates where no other option delivers more collision risk reduction for the same or less delta-V, so a spacecraft operator is choosing between real trade-offs instead of guessing at one.
FAQ
Frequently asked questions
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