NDLI: ESA's Frequency and Timing systems for deep space operations and Radio Science investigations

Content Provider	IEEE Xplore Digital Library
Author	Schafer, W. DeVicente, J.
Copyright Year	2006
Description	Author affiliation: TimeTech GmbH, Stuttgart, Germany (Schafer, W.) \|\| Eur. Space Agency (ESA), Darmstadt, Germany (DeVicente, J.)
Abstract	Following the successful operation of the first Deep Space Antenna (DSA1) in New Norcia, Australia [1] and the recent inauguration of the $2^{nd}$ Station (DSA2) in Cebreros, Spain [2], the European Space Agency (ESA) is currently expanding its Deep Space tracking capabilities, the next facility to be constructed in Kourou, French Guyana. Deep space operations and research impose demanding phase stability on ground station equipment, high frequency stability of the reference system and excellent phase noise of the distributed reference signal. The combination of these aspects is certainly unique for Frequency and Timing systems. An outline of ESA's past and future design and development activities in support of advanced F&T systems is given, which demonstrates ESA's commitment to continuously improve its support of Deep Space Missions. The paper describes the 2nd generation Hydrogen-Maser based Frequency and Timing System in Cebreros, which has been optimized for a high stability and low phase noise 100 MHz distribution system. The architectural design and its operational aspects are presented. The actual performance is given in terms of · Allan Deviation (<; 1E-15 between 1000 and 10000 seconds), · Phase Noise (-102 dBc at 1 Hz offset for 100 MHz) · Long-Term Stability (1.2e-15/day). The paper puts the present performance of ESA's stations in perspective with future mission requirements, which traditionally arise from state-of-the-art Radio Science research. The evolution path to meet future mission demands, which might arise from ambitious projects like BepiColombo [3], is presented.
Starting Page	399
Ending Page	404
File Size	233141
Page Count	6
File Format	PDF
ISBN	9781467326421
e-ISBN	9783980574181
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-27
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	PTB
Subject Keyword	Phase noise Masers Thermal stability Space stations Antennas Delay
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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