[IGSMAIL-6603] CHAT IGS site discontinued

[John Beavan]

Author: John Beavan, GNS Science

Dear Colleagues,

The equipment at CHAT (Chatham Islands) suffered a terminal failure on 6 
March 2012.  We are discontinuing operations at CHAT for several reasons, 
including that the nearby (20 km) IGS site CHTI has been operating in 
parallel for 4.5 years (since 2007 day 345).  An updated site log has been 
submitted to the IGSCB

CHAT rinex files through 2012 day 049 have already been uploaded to IGS 
data centers.  We have retrieved additional data through day 066 from the 
receiver, and these will be uploaded to IGS data centers in the next day 
or so. 

We would like to thank Ruth Neilan and others at JPL, and Graeme Blick and 
others at Land Information New Zealand, who were instrumental in 
establishing CHAT in 1995. 

Best regards,
John

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