Subject: [IGSMAIL-3240]: ALGO - INTERNAL CLOCK w/CLOCK STEERING
From: Stephen Delahunt <[email-masked]>
To: "IGSMAIL, at_IGSCB" <[email-masked]>, [email-masked]
Date: Tue, 20 Mar 2001 11:35:01 -0500

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IGS Electronic Mail      20 Mar 08:35:42 PST 2001      Message Number 3240
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AUTHOR: Stephen Delahunt 

DOMES #: 40104M002

STATION: ALGO (Algonquin Park VLBI, Ontario, Canada)

AGENCY:  Geodetic Survey Division, Natural Resources Canada 
         (NRCan ...formerly EMR Canada)

ADVISORY: - 08:02:30 UT the GPS receiver at ALGO stopped tracking;
          - 11:31:57 UT 2001-Mar-20 the Hydrogen Maser at ALGO 
            went off-line;
          - 13:53:30 UT the GPS receiver resumed tracking on internal
            clock;
          - 14:29:00 UT the GPS receiver was taken off-line to invoke 
            clock-steering;
          - 15:09:30 UT the GPS receiver was brought back on-line with
            the internal clock and steering ON;
          - a replacement atomic clock will soon be installed as a 
            temporary measure;
          - The Hydrogen Maser is being examined and will be returned 
            to service as quickly as possible.

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Mailing Address: Stephen M. Delahunt
                  Geodetic Survey Division, 
                   615 Booth Street, Room 472,
                    Ottawa, Ontario, CANADA K1A 0E9
                     Telephone: (613) 992-1292   
                      Fax: (613) 995-3215
                       Internet:  [email-masked]
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