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Wallops Low Elevation Link Analysis for the Constellation Launch/Ascent LinksTo execute the President's Vision for Space Exploration, the Constellation Program (CxP) was formed to build the next generation spacecraft Orion and launch vehicles Ares, to transport human and cargo to International Space Station (ISS), moon, and Mars. This paper focuses on the detailed link analysis for Orion/Ares s launch and ascent links with Wallops 11.3m antenna (1) Orion's Dissimilar Voice link: 10.24 Kbps, 2-way (2) Ares Developmental Flight Instrument link, 20 Mbps, downlink. Three launch trajectories are considered: TD7-E, F (Feb), and G (Aug). In certain launch scenarios, the critical events of main engine cutoff (MECO) and Separation occur during the low elevation regime of WFF s downrange -- less than 5 degree elevation angle. The goal of the study is to access if there is enough link margins for WFF to track the DV and DFI links.
Document ID
20120004261
Document Type
Presentation
External Source(s)
Authors
Cheung, Keith (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ho, C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kantak, A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lee, C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tye, R. (NASA Wallops Flight Center Wallops Island, VA, United States)
Richards, E. (NASA Wallops Flight Center Wallops Island, VA, United States)
Sham, C. (NASA Johnson Space Center Houston, TX, United States)
Schlesinger, A. (NASA Johnson Space Center Houston, TX, United States)
Barritt, B. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
March 7, 2011
Subject Category
Space Communications, Spacecraft Communications, Command and Tracking
Meeting Information
IEEE Aerospace Conference(Big Sky, MT)
Distribution Limits
Public
Copyright
Other
Keywords
Constellation
ascent
launch

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