SmallBodyNavMsgPayload# struct SmallBodyNavMsgPayload# Full states and covariances associated with spacecraft navigation about a small body. Public Members double state[SMALL_BODY_NAV_N_STATES]# Current state estimate from the filter. double covar[SMALL_BODY_NAV_N_STATES][SMALL_BODY_NAV_N_STATES]# Current covariance of the filter.