Dear Markus,

Thank you for your detailed e-mail which contains obvious issues on
which I agree and others on which I don't necessarily agree. To be
constructive I am not going to (re)start long discussion by e-mail,
and prefer focussing on the interest of the workshop. I insist
about the necessity of the Workshop, but to be reduced to half a
day if the workshop is devoted to the CPP. Among the 5 sessions
you propose the CPP has only ONE HALF session. To contribute to
the other sessions, we don't necessarily need the input SINEX files
submitted to the CPP. Therefore, the proposed Workshop is not a CPP
workshop but rather an IERS workshop which is not a bad idea in
principle. Since most of the participants, I guess, have presentations
at the AGU, then we should avoid pre-presentation/repetition of the AGU
slides. This what would be the case for Jim and me if we would like to
contribute to your session 5, Local ties, since we would present our
recent work on tieing GPS and VLBI frames using the current available
local ties. Another example is the message sent by Jan Vondrak this
morning proposing to present his AGU paper, and there would be and I
know others in this case.

I would much more prefer a small workshop with real discussion
of the CPP objectives, problems, methodology, etc., avoiding of
course repetition of Nice meeting, and why not some preliminary
results, and hence a half a day seems to me a good compromise.

With my best regards
Zuheir

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Zuheir Altamimi                           Email : altamimi@ensg.ign.fr
Institut Geographique National            Phone : 33 1 64 15 32 55
ENSG/LAREG                                FAX   : 33 1 64 15 32 53
6-8 Avenue Blaise Pascal
77455 Champs-sur-Marne, FRANCE
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