Table 8: EVN rms astrometric errors (in $\mu $as) for a relative source separation $\delta -\delta _0= 1\hbox {$^\circ $ }$. Individual astrometric error contributions from station coordinate and wet troposphere uncertainties are given separately along with the total astrometric errors when all model parameters are perturbed together.
    Declination of source  
    $0\hbox{$^\circ$ }$   $25\hbox{$^\circ$ }$   $50\hbox {$^\circ $ }$   $75\hbox{$^\circ$ }$   $85\hbox {$^\circ $ }$
Error component   $\Delta\alpha \cos\delta \hfil$ $\Delta \delta $   $\Delta\alpha \cos\delta \hfil$ $\Delta \delta $   $\Delta\alpha \cos\delta \hfil$ $\Delta \delta $   $\Delta\alpha \cos\delta \hfil$ $\Delta \delta $   $\Delta\alpha \cos\delta \hfil$ $\Delta \delta $

Antenna position

   7  6    7  5    4   5    5  5     4  5
Wet troposphere (mean)   51 31   29 54   18 81   31 58    33 68
Total (mean wtrp)   62 29   33 57   27 78   79 61   201 61


Source LaTeX | All tables | In the text