Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-03T05:32:29.122Z Has data issue: false hasContentIssue false

The requirement to the baseline Knowing of a Space VLBI

Published online by Cambridge University Press:  12 April 2016

L.R. Kogan
Affiliation:
Space Research Institute, Profsoyusnaya 84/32, Moscow 117810, USSR
N.A. Eysmont
Affiliation:
Space Research Institute, Profsoyusnaya 84/32, Moscow 117810, USSR

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

It is shown that the influence of a baseline knowing error on the fringe rate change during coherent averaging time interval is extremely increasing for space VLBI due to more angle velocity of a space baseline rotation comparatively with ground VLBI. It is shown on the example of Radioastron orbit that the reguirement to its orbit for such a short wavelength as 1.35 cm is determined by unknowing of the fringe rate change during coherent averaging time interval rather than by delay ambiguity and this reguirement is equal several meters.

Type
Space-based VLBI
Copyright
Copyright © Astronomical Society of the Pacific 1991