2.5 Specification Summary

2.5.1 Observing conditions

Tab. 2.5 : Observing conditions

In survival conditions, and when not in use, the antenna must be settled at 90° elevation and 180° azimuth (stow position).

2.5.2 Surface Accuracy

Tab. 2.6 : Surface accuracy at 90° and 60° elevation

To estimate the phase error from the surface accuracy, the following can be used :

δ = surface accuracy

λ = observation wavelength

Usually a maximum tolerable phase error is assumed as ε≈36°≈0.63 rad , so that the minimum observable wavelength is

For the Medicina antenna :

2.5.3 Pointing accuracy

Tab. 2.7 : Pointing accuracy