The RadioAstron Dedicated DiFX Distribution
Abstract
:1. Introduction
2. The RadioAstron DiFX Distribution
- Implementing RadioAstron Data Format (RDF)–Mark5B conversion routine, to read in data from the RadioAstron spaceborne antenna
- Enabling delay model server Calc (Calc/Solve Package) to calculate delay information for a spaceborne antenna
- Introducing general relativistic corrections in the delay model
- Changing the DiFX metadata system to deal with variable position/velocity of the spaceborne antenna
- Calculating the delay for the transmission of the signal from the spacecraft to the tracking station
- Calculating the equivalent of parallactic angle correction for the spaceborne antenna from the antenna orientation obtained from the telemetry information, particularly useful for polarization calibration.
- Enabling the use of wide fringe-search windows, thanks to the customized fringe-fitting software.
Acknowledgments
Conflicts of Interest
Abbreviations
AGN | Active Galactic Nuclei |
AO | Announcement of Opportunity |
ASC | Astro Space Center |
DiFX | Distributed FX |
GOT | General Observing Time |
KSP | Key Science Project |
M5B | Mark5 B |
MDPI | Multidisciplinary Digital Publishing Institute |
MPIfR | Max-Planck Institut für Radioastronomie |
RDF | RadioAstron Data Format |
VLBI | Very Long Baseline Interferometry |
References
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© 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
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Bruni, G.; Anderson, J.M.; Alef, W.; Rottmann, H.; Lobanov, A.P.; Zensus, J.A. The RadioAstron Dedicated DiFX Distribution. Galaxies 2016, 4, 55. https://doi.org/10.3390/galaxies4040055
Bruni G, Anderson JM, Alef W, Rottmann H, Lobanov AP, Zensus JA. The RadioAstron Dedicated DiFX Distribution. Galaxies. 2016; 4(4):55. https://doi.org/10.3390/galaxies4040055
Chicago/Turabian StyleBruni, Gabriele, James M. Anderson, Walter Alef, Helge Rottmann, Andrei P. Lobanov, and J. Anton Zensus. 2016. "The RadioAstron Dedicated DiFX Distribution" Galaxies 4, no. 4: 55. https://doi.org/10.3390/galaxies4040055