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Estimating PPN Parameter γ from Processing VLBI Series

Transactions of IAA RAS, issue 47, 43–52 (2018)

Keywords: PPN formalism, VLBI observations.

Abstract

The paper is devoted to estimation of PPN parameter γ over all available at 2016 VLBI observations from geodetic and astrometric programs. We make a short review of previous articles on estimations by light deflection. The calculations has been done using full partial with respect to γ, we take into account gravitational delay from main Solar system bodies and geometric part from transformation to barycentre. In order to show connection between γ and other model parameters we perform number of solutions with different parametrisations and a priory data. It was shown that intraday variations of EOP and ocean loading models mostly affect estimations. There are no significant correlations between γ and other global solution parameters.

Citation

Text

BibTeX

RIS

S. L. Kurdubov, S. M. Mironova. Estimating PPN Parameter γ from Processing VLBI Series // Transactions of IAA RAS. — 2018. — Issue 47. — P. 43–52.

@article{kurdubov2018,
  abstract = {The paper is devoted to estimation of PPN parameter γ over all available at 2016 VLBI observations from geodetic and astrometric programs. We make a short review of previous articles on estimations by light deflection. The calculations has been done using full partial with respect to γ, we take into account gravitational delay from main Solar system bodies and geometric part from transformation to barycentre. In order to show connection between γ and other model parameters we perform number of solutions with different parametrisations and a priory data. It was shown that intraday variations of EOP and ocean loading models mostly affect estimations. There are no significant correlations between γ and other global solution parameters.},
  author = {S.~L. Kurdubov and S.~M. Mironova},
  doi = {10.32876/ApplAstron.47.43-52},
  issue = {47},
  journal = {Transactions of IAA RAS},
  keyword = {PPN formalism, VLBI observations},
  pages = {43--52},
  title = {Estimating PPN Parameter γ from Processing VLBI Series},
  url = {http://iaaras.ru/en/library/paper/1892/},
  year = {2018}
}

TY  - JOUR
TI  - Estimating PPN Parameter γ from Processing VLBI Series
AU  - Kurdubov, S. L.
AU  - Mironova, S. M.
PY  - 2018
T2  - Transactions of IAA RAS
IS  - 47
SP  - 43
AB  - The paper is devoted to estimation of PPN parameter γ over all
available at 2016 VLBI observations from geodetic and astrometric
programs. We make a short review of previous articles on estimations
by light deflection. The calculations has been done using full
partial with respect to γ, we take into account gravitational delay
from main Solar system bodies and geometric part from transformation
to barycentre. In order to show connection between γ and other model
parameters we perform number of solutions with different
parametrisations and a priory data. It was shown that intraday
variations of EOP and ocean loading models mostly affect estimations.
There are no significant correlations between γ and other global
solution parameters.
DO  - 10.32876/ApplAstron.47.43-52
UR  - http://iaaras.ru/en/library/paper/1892/
ER  -