28-29 October 2021
TU Wien Freihaus
Europe/Vienna timezone
Contribution Talk
TU Wien Freihaus
-
DC 02 030 "Jupiter"
Technology
Applying PolConvert to EU-VGOS Data
Speakers
- Dr. Frederic JARON
Primary authors
- Dr. Frederic JARON (TU Wien, MPIfR)
Co-authors
- Dr. Ivan MARTI-VIDAL (University of Valencia)
- JAVIER GONZALEZ GARCIA (IGN - Observatorio de Yebes)
- Simone BERNHART ()
Content
VGOS data are observed and recorded in dual linear polarization. During the fringe-fitting process these two polarization directions have to be combined to Stokes I, taking into account the parallactic angle. Before the visibilites can be coherently added, the cross-polarization complex gains for each telescope have to be determined in a calibration step. In this talk I show how PolConvert can be used in practice to calibrate EU-VGOS data. PolConvert also transforms the visibilites from linear to circular polarization, which has further advantages for fringe-fitting. I will present recent results of applying PolConvert to short-scan EU-VGOS sessions.