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<DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt"><FONT
face="Times New Roman">Author: Mike Craymer<BR><BR>Site ID: ALRT<BR>DOMES No:
40162M001<BR>Location: Alert (Ellesmere Island), Nunavut, Canada<BR>Agency:
Natural Resources Canada (NRCan), Geodetic Survey Division<BR><BR>Due to
tracking problems that originally began in October 2010, the Ashtech Micro-Z
receiver was replaced on 2011-05-20 (D140) with another of the same type. A new
site log will be submitted to the IGS Central Bureau with the following
changes:<BR><BR>3.4 Receiver Type : ASHTECH UZ-12<BR>Satellite System :
GPS<BR>Serial Number : ZR520021002<BR>Firmware Version : CK00<BR>Elevation
Cutoff Setting : 0 deg<BR>Date Installed : 2009-09-09T20:55Z<BR>Date Removed :
2011-05-20T15:45:00Z<BR>Temperature Stabiliz. : NONE<BR>Additional Information :
Original receiver with new power supply.<BR>Tracking less than 50% of available
satellites<BR>began 2010 D361. Tracking problems initially<BR>appeared October
2010.<BR><BR>3.5 Receiver Type : ASHTECH UZ-12<BR>Satellite System :
GPS<BR>Serial Number : UC2200511006<BR>Firmware Version : CQ00<BR>Elevation
Cutoff Setting : 0 deg<BR>Date Installed : 2011-05-20T15:51:30Z<BR>Date Removed
: (CCYY-MM-DDThh:mmZ)<BR>Temperature Stabiliz. : NONE<BR>Additional Information
: <BR><BR>Note that the receiver serial number and firmware version was
incorrect in RINEX files originally submitted. Corrected files have been
submitted today (2011-05-23). We apologize for any inconvenience this may have
caused.</FONT><BR><BR></DIV></DIV></BODY></HTML>