*************************************************************************** IERS Message No. 4 February 12, 2001 *************************************************************************** ----------------------- IERS EOP-PC and ICRS-PC ----------------------- Paris, 9 February 2001 Subject : Submissions for the 2000 IERS Annual Report Dear colleagues: You are invited to submit Earth orientation and reference frame results for annual analyses of the Earth Orientation Centre (EOP-PC) and of the ICRS Centre (ICRS-PC) for publication in the 2000 IERS Annual Report. ICRS-PC: CELESTIAL SYSTEMS AND FRAMES ===================================== The VLBI catalogues provided by the Analysis Centers will be analyzed and validated. New information will be used to check the ICRF-Ext.1, the current conventional celestial reference frame. Individual solutions will be used to study the effect of models, geometry, etc. We would appreciate that a special effort be made concerning the modeling and the adoption of the IERS Conventions. EOP-PC: EARTH ORIENTATION ========================= The EOP submission is unchanged with regard to last year submission. Analysis centers are invited to make their solutions using either the ITRF reference frame or deriving their own terrestrial frame that should be sent to the ITRF Bureau for consistency analyses. Specifications for the terrestrial frames submissions are provided by the ITRF Section: http://lareg.ensg.ign.fr/ITRF/ITRF-submit.html Long time series (over at least five years) tied to well described reference frames are extremely useful for the monitoring of the tie of IERS EOP and reference frames. Warning!!! ---------- A new EOP format was developed at the EOP-PC for homogeneity between the different techniques contributions. Please adopt this new format. DOCUMENTATION ============= To help you to prepare and send your contributions, various files are available at the anonymous ftp : hpiers.obspm.fr login : anonymous password : your e-mail address directory : iers/annreport/Call_2000AR guidelines : general description of the submission files techni_des : technical description of solutions format_rsc : format for submitting sets of radiosource coordinates format_eop : formats for submission of eop series You can also get the information on our Website: http://hpiers.obspm.fr/eop-pc/ HOW TO SUBMIT YOUR SOLUTIONS, THE SUMMARY AND THE DESCRIPTION FILES =================================================================== Send your files to iers@obspm.fr In case of large files put them on the following anonymous ftp (with acknowledgement to iers@obspm.fr): ftp hpiers.obspm.fr cd pub/annreport See the guidelines file for files name description. Your contribution is highly appreciated. Thank you for your cooperation. _________________________________________________________________________ | | | Send all files by 31 March 2001 | |_______________________________________________________________________| ***************************************************************************