D Double (or multiple) designation(s) E Eccentricity assumed F = D + EIn residual blocks the following codes are used:
( ) Brackets surround the residuals of observations rejected
from the solution
Y Observation published to precision of 0s.1 in R.A. and
1" in Decl.
X Observation published to precision of < 1s in R.A. or
< 0'.1 in Decl.