Detail publikace

Use of total station for precise astronomical positioning

MACHOTKA, R.

Originální název

Use of total station for precise astronomical positioning

Český název

Use of total station for precise astronomical positioning

Typ

abstrakt

Jazyk

cs

Originální abstrakt

For investigations of geodynamic effects by geodetic methods the quantities related to both geometric and gravity space are of importance. Terrestrial data for determination of characteristics of the earth0s gravity field, like geopotential differences from spirit levelling or derivatives of the disturbing gravity potential, are especially suitable for detailed studies but their determination is demanding and time consuming. Therefore, efficient and sufficiently precise observation techniques are always welcome. A mobile automated system for astronomical position determination has been developed by the team of the Department of Geodesy, Faculty of Civil Engineering, Brno University of Technology. The measuring system is based on a precise motor-driven total station Topcon GPT 9001A. This device is supplemented by special accessories for astronomical observations – CCD sensor, GPS receiver, video time inserter and a laptop. The measuring process is controlled by a special astronomical software developed by the author. This software assures a remote control of the total station during the observation as well as processing of observation data and evaluation of the results. The observation process is fully automatic and runs without any assistance which avoids personal errors and contributes to better stability of the results. The measuring system was given the name of MAAS – Mobile Automated Astronomical System – and, at present, it exists as a single specimen labelled as MAAS-1. The system was extensively tested in 2009 and 2010 and the results proved its feasibility for a rapid determination of astronomical coordinates. The 1-hour measurement in so called „standard operation mode“ provides the accuracy of vertical deflections components of 0.3 – 0.4 arcseconds so that during an 8-hour observation campaign the vertical deflections of up to 6 sites can be determined.

Český abstrakt

For investigations of geodynamic effects by geodetic methods the quantities related to both geometric and gravity space are of importance. Terrestrial data for determination of characteristics of the earth0s gravity field, like geopotential differences from spirit levelling or derivatives of the disturbing gravity potential, are especially suitable for detailed studies but their determination is demanding and time consuming. Therefore, efficient and sufficiently precise observation techniques are always welcome. A mobile automated system for astronomical position determination has been developed by the team of the Department of Geodesy, Faculty of Civil Engineering, Brno University of Technology. The measuring system is based on a precise motor-driven total station Topcon GPT 9001A. This device is supplemented by special accessories for astronomical observations – CCD sensor, GPS receiver, video time inserter and a laptop. The measuring process is controlled by a special astronomical software developed by the author. This software assures a remote control of the total station during the observation as well as processing of observation data and evaluation of the results. The observation process is fully automatic and runs without any assistance which avoids personal errors and contributes to better stability of the results. The measuring system was given the name of MAAS – Mobile Automated Astronomical System – and, at present, it exists as a single specimen labelled as MAAS-1. The system was extensively tested in 2009 and 2010 and the results proved its feasibility for a rapid determination of astronomical coordinates. The 1-hour measurement in so called „standard operation mode“ provides the accuracy of vertical deflections components of 0.3 – 0.4 arcseconds so that during an 8-hour observation campaign the vertical deflections of up to 6 sites can be determined.

Klíčová slova

gravity field, astronomical positioning

Vydáno

22.04.2011

Místo

EGU General Assembly 2011, Vienna, Austria

Strany od

1

Strany do

1

Strany počet

1

URL

BibTex


@misc{BUT97403,
  author="Radovan {Machotka}",
  title="Use of total station for precise astronomical positioning",
  annote="For investigations of geodynamic effects by geodetic methods the quantities related to both geometric and gravity
space are of importance. Terrestrial data for determination of characteristics of the earth0s gravity field, like geopotential
differences from spirit levelling or derivatives of the disturbing gravity potential, are especially suitable for
detailed studies but their determination is demanding and time consuming. Therefore, efficient and sufficiently
precise observation techniques are always welcome. A mobile automated system for astronomical position determination
has been developed by the team of the Department of Geodesy, Faculty of Civil Engineering, Brno
University of Technology. The measuring system is based on a precise motor-driven total station Topcon GPT
9001A. This device is supplemented by special accessories for astronomical observations – CCD sensor, GPS receiver,
video time inserter and a laptop. The measuring process is controlled by a special astronomical software
developed by the author. This software assures a remote control of the total station during the observation as well
as processing of observation data and evaluation of the results. The observation process is fully automatic and runs
without any assistance which avoids personal errors and contributes to better stability of the results. The measuring
system was given the name of MAAS – Mobile Automated Astronomical System – and, at present, it exists as a
single specimen labelled as MAAS-1. The system was extensively tested in 2009 and 2010 and the results proved
its feasibility for a rapid determination of astronomical coordinates. The 1-hour measurement in so called „standard
operation mode“ provides the accuracy of vertical deflections components of 0.3 – 0.4 arcseconds so that during
an 8-hour observation campaign the vertical deflections of up to 6 sites can be determined.",
  booktitle="Geophysical Research Abstracts Vol. 13,",
  chapter="97403",
  year="2011",
  month="april",
  pages="1--1",
  type="abstract"
}