[IGSSTATION-4585] OHI2 Results of measurements of the antenna heigt (Marker->ARP Up Ecc).

[Rudi Stöger]

Author: Rudi Stoeger

Ladies and Gentlemen

When my colleagues installed the
TPSCR.G3 antenna and the TPSH radome
in the OHI2 GPS+GLONASS Permanent Tracking
Station in the German Antarctican Receiving
Station in O'Higgins, 2009-01-30, they did a
survey and reported the antenna height
(Marker->ARP Up Ecc) with 000.0375 m.

Since 2009-01-30 the antenna height is
000.0375 m in the OHI2 Site Information Form
(site log) and in the RINEX Header.

My colleagues removed the same antenna
and the radome for a refurbishment of the pillar
and for a local survey, 2011-02-07, 13:45 UT.
Same day at 20:00 UT they installed the
antenna and radome again.
My colleagues reported: "No change in the
antenna height".

With seven month delay I got the knowledge of
a survey, prior my colleagues removed the
antenna radome and after they installed the
antenna and radome.

Here are the results of these surveys:
For the antenna height (Marker>ARP Up Ecc)
prior the removal, 2011-02-07, 13:45 UT: 000.0381 m.
This is a difference of 0.6 mm to the survey, dated
2009-01-30, to the antenna height in the OHI2 Site
Information Form and in the RINEX Header.

After the installation, 2011-02-07, 20:00 UT: 000.0380 m.
This is a difference of 0.5 mm to the survey, dated
2009-01-30, to the antenna height in the OHI2 Site
Information Form and in the RINEX Header.

With best regards
Rudi