Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Ken Galal"'
Autor:
Ken Galal, Lisa Policastri, Laura Plice, Brandon D. Owens, Matthew D'Ortenzio, Alan R. Crocker, David R. Hunt, Richard C. Elphic, Alisa M. Hawkins, John L. Bresina
Publikováno v:
2015 IEEE Aerospace Conference.
NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) mission was both a lunar science and a technology demonstration mission. The goals identified for LADEE were to determine the composition of the lunar atmosphere and investigate the proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90f205e02676bc071088edd1f1b98c5c
https://doi.org/10.1109/aero.2015.7118961
https://doi.org/10.1109/aero.2015.7118961
Autor:
Mark Shirley, Ken Galal, Rusty Hunt, James Munger, John L. Bresina, Paul Tompkins, Scott Sawyer
Publikováno v:
SpaceOps 2010 Conference.
The LCROSS (Lunar Crater Observation and Sensing Satellite) project presented a number of challenges to the preparation for mission operations. A class D mission under NASA s risk tolerance scale, LCROSS was governed by a $79 million cost cap and a 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74cedfbfc4e27f7f80b71b5fa919242f
https://doi.org/10.2514/6.2010-2223
https://doi.org/10.2514/6.2010-2223
Autor:
Ken Galal, Rusty Hunt, Mark Shirley, Paul Tompkins, James Strong, Robert Barber, James Munger, Darin Foreman, Matt D. D'Ortenzio, Eric Drucker, John L. Bresina
Publikováno v:
SpaceOps 2010 Conference.
The LCROSS (Lunar CRater Observation and Sensing Satellite) mission was conceived as a low-cost means of determining the nature of hydrogen concentrated at the polar regions of the moon. Co-manifested for launch with LRO (Lunar Reconnaissance Orbiter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e5deb5f6bf82f98a9f9576a7844ec26
https://doi.org/10.2514/6.2010-1986
https://doi.org/10.2514/6.2010-1986
Publikováno v:
2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652).
Concept studies for the Pascal Mars Scout mission defined an economical approach for establishing a global network of small science stations on the surface of Mars. The carrier spacecraft deploys a total of 18 probes during a 10-day deployment phase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc7a13456fe67e62c8f4be343665698e
https://doi.org/10.1109/aero.2003.1235056
https://doi.org/10.1109/aero.2003.1235056
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference and Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::064a04f26a7303394f0a7e6d86a3c268
https://doi.org/10.2514/6.1998-4288
https://doi.org/10.2514/6.1998-4288
Publikováno v:
Guidance, Navigation and Control Conference.
Methods are presented to normalize the attitude quaternion in two extended Kalman filters (EKF), namely, the multiplicative EKF (MEKF) and the additive EKF (AEKF). It is concluded that all the normalization methods work well and yield comparable resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c13d3a5c544f3c7143de4f8d5b78e86
https://doi.org/10.2514/6.1992-4366
https://doi.org/10.2514/6.1992-4366