boundary="_000_6FC9509E1EC96049BAE9DBA2946A4902F067DAD8mailex1ignfr_" ****************************************************************************** dorismail 04-May-2020 12:23:39 Message No 1229 ****************************************************************************** Author: Zuheir Altamimi Subject: ITRF2020: Call for local survey results --_000_6FC9509E1EC96049BAE9DBA2946A4902F067DAD8mailex1ignfr_ Author: Zuheir Altamimi Dear Colleagues, This email is addressed to the owners, operators and surveyors of ITRF Co-l= ocation sites. I hope that you are all safe and healthy in this unprecedented and terrible= pandemic situation. In building and operating Core co-location sites, your contribution is fund= amental to global geodesy and to the ITRF in particular. The four IAG services (IDS, IGS, ILRS and IVS) are currently reprocessing t= heir data in preparation for their contribution to the ITRF2020. The ITRF2020 Call fo= r Participation is available here: http://itrf.ign.fr/doc_ITRF/CFP-ITRF2020.pdf Recent and past results of local surveys at ITRF co-location sites are soli= cited for inclusion in ITRF2020 analysis. Local ties should be provided in SINEX format, with f= ull variance covariance information, together with a report if available. If more than one local surveys were operated, at different epochs, we kindl= y ask you to make all the results available: one SINEX per local survey results. In the scope of the activity of the IAG working group WG 1.2.1 Methodology = for surveying geodetic instrument reference points (joint with IERS), co-location site survey and = survey product metadata are being collected. When submitting your local tie SINEX file(s), we kindl= y ask you to fill in and send the excel sheet/form available at the following link: http://itrf.ign.fr/local_surveys.php Please submit your files to: ITRS Center: itrf@ign.fr and IERS Central Bureau: central_bureau@iers.org The IERS ITRS Product Center is particularly grateful to all the institutio= ns that provide the necessary investment for the space geodetic observatori= es which constitute the main ITRF foundation. Counting on your valuable contributions. Sincerely Yours Zuheir Altamimi Head, ITRS Center President, International Association of Geodesy --_000_6FC9509E1EC96049BAE9DBA2946A4902F067DAD8mailex1ignfr_
Author: Zuheir Altamimi

Dear Colleagues,

This email is addressed to the owners, operators and surveyors of ITRF= Co-location sites.

I hope that you are all safe and healthy in this unprecedented and terrible= pandemic situation.

In building and operating Core co-location sites, your contribution is fund= amental to
global geodesy and to the ITRF in particular.

The four IAG services (IDS, IGS, ILRS and IVS) are currently reprocessing t= heir data
in preparation for their contribution to the ITRF2020. The ITRF2020 Call fo= r Participation
is available here: http://itrf.ign.fr/doc_ITRF/CFP-ITRF2020.pdf

Recent and past results of local surveys at ITRF co-location sites are soli= cited for inclusion
in ITRF2020 analysis. Local ties should be provided in SINEX format, with f= ull variance covariance
information, together with a report if available.
If more than one local surveys were operated, at different epochs, we kindl= y ask you to make all
the results available: one SINEX per local survey results.
In the scope of the activity of the IAG working group WG 1.2.1 Methodology = for surveying geodetic
instrument reference points (joint with IERS), co-location site survey and = survey product metadata
are being collected. When submitting your local tie SINEX file(s), we kindl= y ask you to fill in and
send the excel sheet/form available at the following link:

http://itrf.ign.fr/local_surveys.php

Please submit your files to:
ITRS Center: itrf@ign.fr
and
IERS Central Bureau: central_bureau@iers.org

The IERS ITRS Product Center is particularly grateful to all the institutio= ns that provide the necessary investment for the space geodetic observatori= es which constitute the main ITRF foundation.

Counting on your valuable contributions.

Sincerely Yours
Zuheir Altamimi
Head, ITRS Center
President, International Association of Geodesy
--_000_6FC9509E1EC96049BAE9DBA2946A4902F067DAD8mailex1ignfr_-- Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr