Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Greg Chavers"'
Autor:
Kathryn Crowe, Tara Polsgrove, Lisa Watson-Morgan, John Connolly, Greg Chavers, Jason Turpin, Thomas K. Percy, Laura Means, Don Krupp
Publikováno v:
2021 IEEE Aerospace Conference (50100).
On March 26, 2019, in keeping with President Trump's Space Policy Directive-1, Vice President Pence charged NASA with landing the first woman and the next man on the South Pole of the Moon by 2024, followed by a sustained presence on and around the M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7697eb2b46ed30910ebd4967b584d37
https://doi.org/10.1109/aero50100.2021.9438179
https://doi.org/10.1109/aero50100.2021.9438179
Publikováno v:
2020 IEEE Aerospace Conference.
In response to the 2018 White House Space Policy Directive-1, to lead an innovative and sustainable lunar exploration, and to the Vice President's March 2019 direction to do so by 2024, NASA is working to establish humanity's presence on and around t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74511b6df176473e079348c9f2e156a7
https://doi.org/10.1109/aero47225.2020.9172599
https://doi.org/10.1109/aero47225.2020.9172599
Autor:
J. E. S. Moore, Greg Chavers, Kim Ess, Jeff Farmer, Huu Trinh, Irene Piatek, Patrick V. Hull, Kristina Rojdev, Sharada Vitalpur, Derek Calvert, Greg Frady, Eric Lowery, Kevin Dunn
Publikováno v:
2015 IEEE Aerospace Conference.
NASA's Resource Prospector (RP) is a multi-center and multi-institution collaborative project to investigate the polar regions of the Moon in search of volatiles. The mission is rated Class D and the duration is approximately 10 days. The RP vehicle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a994a23dacf9c0335adcdf6e01404d34
https://doi.org/10.1109/aero.2015.7118993
https://doi.org/10.1109/aero.2015.7118993
Autor:
Christopher Becker, Mike Hannan, Doug Rickman, Greg Chavers, Joshua Moore, Logan Kennedy, Timothy G. McGee, Jason R. Adam, Greg Frady, Patrick A. O'Leary, Joshua Eliser, Erick Ordonez
Publikováno v:
AIAA Guidance, Navigation, and Control Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0965488fc7324cab6368fe6c217cdca
https://doi.org/10.2514/6.2015-0852
https://doi.org/10.2514/6.2015-0852
Autor:
Thomas B. Criss, Mike Hannan, Chirold Epp, Timothy G. McGee, Mehta Nishant, Cheryl Reed, Paul E. Rosendall, Wen Jong Shyong, Greg Chavers, Adrian Hill
Publikováno v:
AIAA Guidance, Navigation, and Control Conference.
Over much of the last decade, the Johns Hopkins Applied Physics Laboratory has developed and tested passive optical on-board terrain relative navigation for precision landing on the moon or small planetary bodies. This paper summarizes the developmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::534bef0d633be3be851a4b8a30288c17
https://doi.org/10.2514/6.2015-0853
https://doi.org/10.2514/6.2015-0853
Publikováno v:
2009 IEEE Aerospace conference.
The United States (U.S.) space exploration policy has directed the National Aeronautics and Space Administration (NASA) to retire the Space Shuttle and to replace it with a new generation of space transportation systems for crew and cargo travel to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caf0a0c54d02c994cc8583481904781a
https://doi.org/10.1109/aero.2009.4839547
https://doi.org/10.1109/aero.2009.4839547
Autor:
Greg Chavers, Tim W. Glover, Bryan M. Reid, Alec D. Gallimore, Franklin Chang-Diaz, Edgar A. Bering, Benjamin W. Longmier, Jared P. Squire
Publikováno v:
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b54a51f29116270015977c5f972874
https://doi.org/10.2514/6.2008-4739
https://doi.org/10.2514/6.2008-4739
Publikováno v:
SpaceOps 2008 Conference.
Ares I design brings together innovation and new technologies with established infrastructure and proven heritage hardware to achieve safe, reliable, and affordable human access to space. NASA has 50 years of experience from Apollo and Space Shuttle.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::113171181cb608171e32b2eb7c77775e
https://doi.org/10.2514/6.2008-3562
https://doi.org/10.2514/6.2008-3562
Autor:
Brian E. Gilchrist, Chris Deline, Jonathan E. Jones, Chris Dobson, Roger D. Bengtson, Greg Chavers
Publikováno v:
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The efficient extraction of thrust in a magnetic nozzle is of great importance to many future space propulsion designs. In several high-power EP thrusters, high magnetic fields are required to create and confine a quasineutral plasma. In order to pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fc2d393131704537ae72e08238459d1
https://doi.org/10.2514/6.2007-5259
https://doi.org/10.2514/6.2007-5259
Publikováno v:
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The demonstration of plasma detachment from an applied magnetic field is of paramount importance to many future space propulsion designs. Ion engines and Hall thrusters do not produce a magnetized plasma, so the question of plasma magnetization has n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::197ebaefdf4f65942336f3846b19b3d9
https://doi.org/10.2514/6.2006-4653
https://doi.org/10.2514/6.2006-4653