[IGSSTATION-3123]: NISU time step

[Marc Weiss]

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IGS Station Mail          10 Jun 12:51:01 PDT 2009      Message Number 3123
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Author: Marc Weiss
Subject: NISU time step

Dear Colleagues,

Our older station NISU had a time step of -1400.0 ns on June 2, due to a 
slip in the 5 MHz cycle lock.  We reset this today.  It appears to be 
back where it was.

Several analysis centers (ACs) are still apparently using the data from 
NISU instead of those from NIST.  Station NIST is our primary station in 
the IGS.  The IGS website lists several ACs using NISU data, yet they 
are not in the list for NIST.  These stations are:  NRCan, GFZ, JPL, 
MIT, and ESOC.  Please consider using the data from NIST.

Best Regards,
Marc Weiss


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Marc A. Weiss, Ph.D.                                    Phone:  303/497-3261
NIST Time and Frequency Division                FAX:     303/497-6461
MS 847.5, 325 Broadway
Boulder, CO  80305-3328
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