[IGSMAIL-6476] Updates to the IERS Conventions (2010)

[Gerard Petit]

Author: Gérard Petit (IERS Conventions Center)

Information on the updates to the IERS Conventions (2010)

The IERS Conventions Center informs of the following updates:

* Chapter 5 "Transformation between the ITRS and GCRS" has been updated on 
14 October 2011, see
http://tai.bipm.org/iers/convupdt/convupdt_c5.html .

The header of the subroutine PMSDNUT2.F has been corrected to point to the 
right section of Chapter 5 and to provide a new test case.

* Chapter 6 "Geopotential" has been updated on 14 October 2011, see
http://tai.bipm.org/iers/convupdt/convupdt_c6.html .

Correct errors in the file fes2004_Cnm-Snm.dat: Coefficients for the waves 
Sa and P1 were computed with an erroneous phase.
In the section 6.3.2 "Ocean tide models", part "FES2004", insert a warning 
concerning
the phase of the C20 term of the very long period waves (update dated 23 
September 2011).

* Chapter 7 "Displacement of reference points" has been updated on 14 
October 2011, see
http://tai.bipm.org/iers/convupdt/convupdt_c7.html .

The subroutine ARG2.F has been corrected to not modify internally the IYEAR 
argument (the four-digit year).
The bug was introduced at the update dated 23 September 2011.


The USNO web site http://maia.usno.navy.mil/conv2010/convupdt.html has also 
been updated.

Gérard Petit and Brian Luzum
IERS Conventions Center