[IGSMAIL-4207]: THU1 terminating operation

[Finn Bo Madsen]

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IGS Electronic Mail      18 Dec 13:54:04 PST 2002      Message Number 4207
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Author: Finn Bo Madsen

Dear Colleagues,

Please note that THU1 43001M001 will be taken out of service
Monday January 12th, 2003. THU1 was established in 1995 in a
corporation between KMS and JPL, and has been of great
importance to the IGS community.

The reason for discontinued operation of THU1 is that a new
station THU3 43001M002 was established in 1998. This station
has a better monumentation by a concrete pillar founded on
bedrock, whereas THU1 is roofmounted on a house standing on
frozen soil. The future of this house is uncertain and the changeover
from THU1 to THU3 has been planned for quite some time. Analysis
Centers should begin to use THU3 data in lieu of that from THU1
if they have not made the change already.
THU1 and THU3 has been running in parallel for quite some time,
and a local tie has been established analyzing data from more
than a full year.
Please refer to the THU3 station log for further information.


Best regards


Finn Bo Madsen (KMS) and David Stowers (JPL)