<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Author: David Maggert, UNAVCO<div><br></div><div>Dear Colleagues,</div><div><br></div><div>We recently found out that the radome at Khantau (SUMK) was found missing on 20-NOV-2010. As a result, all RINEX from that point onward needed to be corrected to not include a radome. The RINEX at CDDIS has been corrected as well as at UNAVCO. On 21-SEP-2012 the antenna was replaced at SUMK as well. These changes are documented below.</div><div><br></div><div><pre style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; white-space: pre-wrap; ">4.3 Antenna Type : TRM14532.00 NONE
Serial Number : 3313A67941
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.089
Marker->ARP North Ecc(m) :
Marker->ARP East Ecc(m) :
Alignment from True N : (deg; + is clockwise/east)
Antenna Radome Type : NONE
Radome Serial Number : N/A
Antenna Cable Type : (vendor & type number)
Antenna Cable Length : (m)
Date Installed : 2010-11-20T00:00Z
Date Removed : 2012-09-21T00:00Z
Additional Information : Radome found with top portion missing on
: 20-NOV-2010. Exact date of removal unknown.
4.4 Antenna Type : TRM14532.00 NONE
Serial Number : 3006A00024
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.089
Marker->ARP North Ecc(m) :
Marker->ARP East Ecc(m) :
Alignment from True N : (deg; + is clockwise/east)
Antenna Radome Type : NONE
Radome Serial Number : N/A
Antenna Cable Type : (vendor & type number)
Antenna Cable Length : (m)
Date Installed : 2012-09-21T00:00Z
Date Removed : (CCYY-MM-DDThh:mmZ)
Additional Information : (multiple lines)</pre><div><br></div></div><div><br></div><div>I realize that SUMK is not an IGS station, but I thought it would be helpful to announce the changes since this station is published at CDDIS. The updated site log can be found at UNAVCO.</div><div><br></div><div><a href="ftp://data-out.unavco.org/pub/logs/sumklog.txt">ftp://data-out.unavco.org/pub/logs/sumklog.txt</a></div><div><br></div><div>Best Regards,</div><div>David Maggert</div><div><br></div></body></html>