[IGSMAIL-5614]: minor updates of IERS Conventions Chapter 7

[Jim.Ray]

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IGS Electronic Mail      20 Jun 05:22:58 PDT 2007      Message Number 5614
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Author: Gerard Petit (sent by Jim Ray)

Chapter 7 of the IERS Conventions (on station position displacements)
has been
updated on 20 June 2007, see
http://tai.bipm.org/iers/convupdt/convupdt_c7.html .

20 June 2007:  The subroutine dehanttideinel.f has been updated. It remains
under review for some other possible corrections (which effects should
be < 0.05
mm).

The dutc subroutine has been corrected (from H. Manche). The effect is <
0.05
mm.

The step2diu subroutine has been corrected (from V. Tesmer). The effect may
exceed 0.1 mm.

The list of all updates to the IERS Conventions can be found on
http://tai.bipm.org/iers/convupdt/listupdt.html .

Girard Petit
IERS Conventions center