The GNSS data analysis centre of the Main Astronomical Observatory of the NAS of Ukraine: some results of observation reprocessing of GPS observations at permanent stations of the regional network for GPS weeks 1236-1399

2012 ◽  
Vol 18 (6(79)) ◽  
pp. 76-80 ◽  
Author(s):  
M.V. Ishchenko ◽  
Keyword(s):  
Data Analysis ◽  
Astronomical Observatory ◽  
Regional Network ◽  
Main Astronomical Observatory ◽  
Gnss Data ◽  
Gps Observations

Space geodetic activities at the Astronomical Observatory of Mongolia

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Sh. Amarjargal ◽  
D. Baatarkhuu ◽  
S. Sanjjav ◽  
S. Zagdsuren ◽  
B. Nergui ◽  
...  
Keyword(s):  
Anomalous Behavior ◽  
Astronomical Observatory ◽  
Observation Data ◽  
Quality Check ◽  
Continuous Gps ◽  
Gnss Data ◽  
Academy Of Sciences ◽  
Derivative Products ◽  
To Receive ◽  
Gps Observations

AbstractWe present in this paper some results obtained in the field of space geodesy based on continuous GPS observations at the Astronomical Observatory of Mongolia. Starting with a brief historical overview of the main space geodetic activities carried out by the Astronomical Observatory in the past, we outline here current achievements in the application of GPS techniques in the geosciences research in Mongolia. We setup a local GNSS Data Center of the Mongolian Academy of Sciences to receive, quality control and process into derivative products the observation data coming from its continuously recording stations. The quality check performed on three non-real-time permanent stations reveals that all three stations show smooth trends of each parameter indicating good quality in data record and operation without any anomalous behavior.

scholarly journals Quality Assessment of the Homogeneous Coordinate Time Series of Eastern European GNSS Stations in the IGS05 Reference Frame

2014 ◽  
Vol 49 (3) ◽  
pp. 137-150
Author(s):  
M. Ishchenko
Keyword(s):  
Reference Frame ◽  
Data Center ◽  
A Priori ◽  
Correlation Coefficients ◽  
Astronomical Observatory ◽  
International Gnss Service ◽  
Main Astronomical Observatory ◽  
Ocean Loading ◽  
Tropospheric Refraction ◽  
Gnss Data

Abstract For the first time, a homogeneous coordinate solution in the IGS05 reference frame and the values of the zenith tropospheric refraction for the GPS weeks 935-1399 (from December 12, 1997 to November 4, 2006) were obtained at the GNSS Data Center Analysis of the Main Astronomical Observatory NAS of Ukraine. The obtained solution is devoid of effects, brought by changes in the methods of processing models, a priori data and software (absolute phase center model combinations of antenna-dome instead of relative models, model of ocean loading FES2004 instead of GOT00.2_PP, the elevations cut-off angle 3° instead of 10°, etc. were used). To estimate the quality of the solution, a comparison with the international combined solutions using the Helmert transformation was carried out. The RMS of direct station coordinate differences and correlation coefficients between the solutions estimated by the Main Astronomical Observatory, European GNSS Permanent Network and International GNSS Service are presented. The obtained results allow making the conclusion that the solution obtained at the GNSS Data Center Analysis of the Main Astronomical Observatory shows a good quality and agrees well with other solutions.

scholarly journals The Program Complex “Kiev — Geodynamic R1”

1990 ◽  
Vol 141 ◽  
pp. 156-156 ◽  
Author(s):  
M. M. Medvedsky
Keyword(s):  
Data Analysis ◽  
Ukrainian Academy ◽  
Astronomical Observatory ◽  
Program Complex ◽  
Main Astronomical Observatory ◽  
Vlbi Observations ◽  
Vlbi Data

The software for the reduction of the VLBI observations of the Main Astronomical Observatory of the Ukrainian Academy of Science is described.Our program complex has three parts:1) calculation of geometrical delay τ,2) calculation of required corrections to values of τ,3) data analysis procedures.This software has been tested using the NGS VLBI data for the obtaining of corrections to the ERP. The parameters of the clock were derived. Our results were compared with similar results, which were published by Shanghai observatory (China) and IRIS bulletin.The differences between our results and the data given in the IRIS bulletin are within 5 mas, and for UT are within 0.1 ms.

Sign in / Sign up

Export Citation Format

Share Document