Report of Leap Second Problem with GPS Data

From: Richard Langley <>
Date: Fri, 13 Jan 2006 09:26:52 -0400 (AST)

-- Richard Langley
   Professor of Geodesy and Precision Navigation

 Richard B. Langley E-mail:
 Geodetic Research Laboratory Web:
 Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142
 University of New Brunswick Fax: +1 506 453-4943
 Fredericton, N.B., Canada E3B 5A3
     Fredericton? Where's that? See:

---------- Forwarded message ----------
Date: Fri, 13 Jan 2006 09:59:31 +1100
Subject: [IGSSTATION-760]: DARR and 1Hz data from ARGN

IGS Station Mail 12 Jan 14:59:42 PST 2006 Message Number 760

Author: Michael Moore

                  Geoscience Australia
            Australian Regional GPS Network
                  Geodetic Operation


High rate data, 1Hz 15 minute files, from the ARGN suffered a software
problem due to the recently introduced UTC leap-second. Data from DOY 001 to
DOY 009 is 1s off in the timestamps reported n the RINEX files. This problem
only applies to the 1Hz 15minute files submitted from the ARGN. The software
problem has been fixed, and all files from DOY 010 is reporting the correct

RINEX headers for DARR from DOY 009, was incorrectly reporting an antenna
height of 0.000. The headers have now been fixed to report the correct
antenna height of 0.0025, and the data from DOY 009 has been resubmitted with
the correct header information.

I apologise for any inconvenience this may cause.


Michael Moore
Geodetic Operations
Geoscience Australia Earth Monitoring Group (GEM)
Telephone: (+61 2) 62499052
Fax: (+61 2) 62499929
GPO Box 378
Canberra ACT 2601
Received on Fri Jan 13 2006 - 05:27:13 PST

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