A great deal of effort has been put into improving the practice of space situational awareness such that covariance data associated with predicted close approaches is more “realistic.” However, “realistic” usually has meant “larger” and this presents a problem. In many cases, there exist multiple sources for predictive ephemerides, which may be fused to produce predictive states with smaller associated covariances. Ancillary to the fusion computation is the capability to assess consistency of the estimates. If actionable covariance information becomes available, interval estimates for the miss distance provide a more informative alternative to collision probability for risk assessment.
Covariance Realism Is Not Enough
2019 AAS/AIAA Astrodynamics Specialist Conference ; 2019 ; Portland, ME, United States
2019-08-11
Conference paper
No indication
English
Covariance Realism is Not Enough (AAS 19-605)
TIBKAT | 2020
|EARTH OBSERVING SYSTEM COVARIANCE REALISM
British Library Conference Proceedings | 2016
|Earth Observing System Covariance Realism
AIAA | 2016
|Covariance Realism (AAS 09-304)
British Library Conference Proceedings | 2010
|Earth Observation System Covariance Realism Updates
NTRS | 2016
|