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Details

Details answers what the current risk is, which CDM produced it, how that CDM's geometry looks, and how the numbers have moved since the conjunction event opened.

Event Summary​

A structured overview of the conjunction event, including RSO identifiers, risk level, and current status: active, mitigated, or archived.

Key metrics shown:

  • Pc and the calculation method used
  • Miss Distance, Total RSS and range
  • Mahalanobis Distance
  • TCA countdown and exact timestamp
  • Time since event data was Last updated
  • Satcat recommendation for the selected CDM

CDM Timeline​

The CDM timeline shows every CDM received and generated for the conjunction event, grouped by originator and identifying the primary<>secondary data sources. Ex: KAYHAN: O/O<>HAC

Satcat classifies CDMs by operational status, which distinguishes operator-validated data from testing and planning data:

  • Operational - based on uploaded OPERATIONAL ephemeris
  • Theoretical - based on ephemeris without an OPERATIONAL designation

PREDICTIVE ephemeris from a third-party tracker can also trigger new conjunction assessment results.

One CDM in the event is marked Best CDM. How Satcat selects it is covered in Best CDM.

A recommended action is shown for each CDM where recommendation data is available. See Recommendations.

Alert Banner​

An alert is shown when:

  • The selected CDM contains data sources not supplied by the operator
  • The selected CDM is classified as Theoretical
  • The conjunction event's TCA has passed

Close Approach Geometry​

CDM Information covers:

  • 3D visualization with close approach playback and object covariance
  • Pc values with computation methods and originators
  • Hard Body Radius (HBR) values for each object
  • RSS Uncertainty components, radial, in-track, and cross-track
  • Relative speed, approach angle, and altitude at TCA
  • CDM metadata, with downloads in KVN or JSON

The orbit determination behind each state estimate is rated alongside these values. See OD Quality Ratings.

Analysis Plots​

Five groups of plots cover the conjunction event:

  • Risk trend - Pc, Pc method comparison, Mahalanobis distance, and Delta TCA across the CDM history
  • Miss distance trend - RIC components and their change between CDMs
  • Encounter geometry - B-plane and encounter plane at TCA
  • Data sensitivity - Pc response to covariance, HBR, space weather, and collision consequence
  • Primary vs Secondary Range - relative separation over time and its projections

See Analytics Products for every plot in each group.