Open Access Repository

Venus Express radio occultation observed by PRIDE

Downloads

Downloads per month over past year

Bocanegra-Bahamon, TM, Molera Calves, G ORCID: 0000-0001-8819-0651, Gurvits, LI, Cimo, G, Dirkx, D, Duev, DA, Pogrebenko, SV, Rosenblatt, P, Limaye, S, Ciu, L, Li, P, Kondo, T, Sekido, M, Mikhailov, AG, Kharinov, MA, Ipatov, AV, Wang, W, Zheng, W, Ma, M, Lovell, JEJ ORCID: 0000-0001-5273-9817 and McCallum, JN ORCID: 0000-0002-0233-6937 2019 , 'Venus Express radio occultation observed by PRIDE' , Astronomy and Astrophysics, vol. 624 , pp. 1-14 , doi: 10.1051/0004-6361/201833160.

[img]
Preview
PDF
131673 - Venus ...pdf | Download (2MB)

| Preview

Abstract

Context:Radio occultation is a technique used to study planetary atmospheres by means of the refraction and absorption of a spacecraft carrier signal through the atmosphere of the celestial body of interest, as detected from a ground station on Earth. This technique is usually employed by the deep space tracking and communication facilities (e.g., NASA’s Deep Space Network (DSN), ESA’s Estrack).Aims:We want to characterize the capabilities of the Planetary Radio Interferometry and Doppler Experiment (PRIDE) technique for radio occultation experiments, using radio telescopes equipped with Very Long Baseline Interferometry (VLBI) instrumentation.Methods:We conducted a test with ESA’s Venus Express (VEX), to evaluate the performance of the PRIDE technique for this particular application. We explain in detail the data processing pipeline of radio occultation experiments with PRIDE, based on the collection of so-called open-loop Doppler data with VLBI stations, and perform an error propagation analysis of the technique.Results:With the VEX test case and the corresponding error analysis, we have demonstrated that the PRIDE setup and processing pipeline is suited for radio occultation experiments of planetary bodies. The noise budget of the open-loop Doppler data collected with PRIDE indicated that the uncertainties in the derived density and temperature profiles remain within the range of uncertainties reported in previous Venus’ studies. Open-loop Doppler data can probe deeper layers of thick atmospheres, such as that of Venus, when compared to closed-loop Doppler data. Furthermore, PRIDE through the VLBI networks around the world, provides a wide coverage and range of large antenna dishes, that can be used for this type of experiments.

Item Type: Article
Authors/Creators:Bocanegra-Bahamon, TM and Molera Calves, G and Gurvits, LI and Cimo, G and Dirkx, D and Duev, DA and Pogrebenko, SV and Rosenblatt, P and Limaye, S and Ciu, L and Li, P and Kondo, T and Sekido, M and Mikhailov, AG and Kharinov, MA and Ipatov, AV and Wang, W and Zheng, W and Ma, M and Lovell, JEJ and McCallum, JN
Keywords: radio occultation, PRIDE, Venus, Venus Express
Journal or Publication Title: Astronomy and Astrophysics
Publisher: EDP Sciences
ISSN: 0004-6361
DOI / ID Number: 10.1051/0004-6361/201833160
Copyright Information:

Reproduced with permission from Astronomy & Astrophysics, © 2019 ESO”.

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP