[IGSSTATION-5609] MAT1 clock reference

[geodaf at hp835.mt.asi.it]

Author: Giuseppe Colucci

Please be adviced that today (2013/337) clock reference for MAT1 (Matera,
Italy) station has been changed from "ext-Maser" to INTERNAL becasue the
installation of a new iMaser is in progress. The reference will be switched
back to EXTERNAL when new Maser will be stable.

Updated site log is going to be submitted to both EUREF and IGS.

Regards,
Giuseppe Colucci