From ryan.ruddick at ga.gov.au Thu Jul 21 20:26:05 2011 From: ryan.ruddick at ga.gov.au (ryan.ruddick at ga.gov.au) Date: Fri, 22 Jul 2011 13:26:05 +1000 Subject: [IGSSTATION-4486] ALIC: Antenna Change Message-ID: <201107220326.p6M3Q54b018143@sun-gnss-app.ga.gov.au> Author: Ryan Ruddick Geoscience Australia Australian Regional GPS Network ****************************************************************************** Site ID : ALIC DOMES No: 50137M001 Location: Alice Springs (Northern Territory, AUSTRALIA) ****************************************************************************** Dear Colleagues, The antenna and antenna cable at the GNSS tracker ALIC were replaced at approximately 2011-07-20T00:00Z. The previous cable was found to have small amounts of corrosion at the antenna end. The details of the changes are as follows: 4.2 Antenna Type : AOAD/M_T NONE Serial Number : 318 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0070 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 2003-06-15T03:30Z Date Removed : 2011-07-20T00:00Z Additional Information : Damaged radome was removed. 4.3 Antenna Type : LEIAR25.R3 NONE Serial Number : 09370001 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0015 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : LMR400 Antenna Cable Length : 81 m Date Installed : 2011-07-20T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : It appears that these changes have fixed the problems we were seeing with data quality from the site. During the upgrade we also had some vegetation cleared from around the site. All these changes are reflected in the IGS log file which has been submitted to IGS CB and is also available from the Geoscience Australia anonymous FTP server (ftp.ga.gov.au). Data since day of year 200 has now been submitted to IGS archives. We apologise for any inconveniences caused. Regards, Ryan Ruddick Geoscience Australia P: +61 2 6249 9426 E: Ryan.Ruddick at ga.gov.au