${\check{\overrightarrow{b}}}_{1r}^{\mathrm{n}}(N_{1r}^{1l},\dots N_{1r}^{kl})$	baseline estimate for partially fixed integer ambiguities,
${\sigma }_{{\check{l}}_{1r}}^2$	variance of length of baseline estimate assuming correct partial ambiguity fixing,
${\sigma }_{{\overline{l}}_{1r}}^2$	variance of prior information on baseline length,
${\gamma }_l^2$	upper bound on the squared normalized baseline length error,
${\gamma }_{\phi ,\theta ,\psi }^2$	upper bound on the sum of squared baseline residuals.