Summary: We discuss the first tests carried out with a goal of defining the procedures for the Ground Based Optical Tracking (GBOT) of Gaia. We have made observations of the Wilkinson Microwave Anisotropy Probe in both guiding-on-the-stars and guiding-on-the-satellite modes. We present the results of these tests and, considerations of the required detector size and proposed filter choice.

Bibtex entry for this abstract:

@UNPUBLISHED{LL:RLS-002,
author = {R.L.~Smart and A.~Andrei and S.~Bouquillon and others},
title={{G}round {B}ased {O}bservations of {G}aia - {F}irst tests using {W}{M}{A}{P}},
institution={Osservatorio di Torino, Italy},
year={2009},
month={December},
url={http://www.rssd.esa.int/doc_fetch.php?id=2963882},
note={GAIA-C3-TN-OATO-RLS-002},
type={Technical note}
}