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Table 4:

NPOI observations and model fit results.

UT Date 		Julian Year Triangles Calibrator $\rho$ [mas] $\theta$ [deg] $\sigma_{\rm maj}$ [mas] $\sigma_{\rm min}$ [mas] PA [deg]

2005 Sep. 13 		2005.6996 EC-W7C-W7E $\kappa$ And 9.5 134.3 0.58 0.10 120
2005 Sep. 15 2005.7051 EC-W7C-W7E $\kappa$ And 10.1 132.4 0.55 0.09 119
2006 Nov. 18 2006.8796 EC-W7C-W7E, W7C-CW-W7W $\mu$ And 7.5 19.5 0.47 0.11 95
2007 Aug. 9 2007.6024 EC-NC-EN, E6E-E6N-EN $\zeta$ Cas 16.8 270.4 0.54 0.15 46
2007 Aug. 18 2007.6271 EC-NC-EN, E6E-E6N-EN $\zeta$ Cas 17.0 268.1 0.52 0.16 38
2007 Aug. 20 2007.6326 EC-NC-EN, E6E-E6N-EN $\zeta$ Cas 16.9 269.1 0.57 0.15 46

Notes. The listed triangles of baselines refer to the astrometric stations E (East), C (Center), W (West), and N (North), and the imaging stations W7 and E6. $\rho$ and $\theta$(measured east from north) refer to the position of the secondary relative to the primary component. $\sigma_{\rm maj}$ and $\sigma_{\rm min}$ and PA refer to the major, minor axis, and position angle of the error ellipse of the position measurement. The shape and orientation of this error ellipse is directly related to the synthesized beam.


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