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Broadcast 1900 (Special Edition)Listen to the show!
Aired on November 25th, 2012
Guests: Dan Adamo, Dr. John Jurist
Guests: Dan Adamo, Dr. John Jurist. Topics: Trajectory analysis to EML2, Mars, and more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. You can view our webinar on our Vimeo Space Show channel, To follow along with Dan's pdf, use We welcomed Dan Adamo back to the program and Dr. John Jurist as co-host for this special webinar addressing trajectory analysis for an EML2 mission and more. On The Space Show blog, you will find Dan's PDF document used during the webinar, a link to the movie he played in the second half of the webinar, and his Phobos-Grunt analysis paper we discussed near the end of the webinar. During the first hour of the webinar, Dan took us through the trajectory analysis to Earth-Moon L2 per his PDF document. We talked about why EML2, libration points in general, and how such missions are planned. If the resolution on the webinar video for the charts and tables used during this segment are difficult to read on your computer, please bring the document up on the PDF on The Space Show blog and follow along that way. Dan took us through Table 1, HALO orbits, and the HOI as well as the Trans-Lunar Insertion points. We talked about orbital characteristics, delta V, rocket size, and more We also talked about the position of the Earth, launch windows, the Moon, & other factors influencing the planning of the mission. While at times the discussion may seem a bit technical or overwhelming for those of us having never done mission planning at this level before, all of us will certainly have a better understanding of the factors considered and influencing both robotic as well as human spaceflight missions. Near the end of the segment, we talked about the SLS and heavy lift & how payload capacity interacts with mission & trajectory analysis. In the second hour of our webinar, Dan took us through his HD movie of the orbital trajectory talked about during the first segment, stopping it at intervals for specific explanations and questions. The movie is in the QuickTime format but you can see it both on the webinar or by using the URL provided on the blog. We took several listener calls & questions. One asked Dan about the differences in planning for the robotic vs. the HSF mission using MSL & Curiosity as an example. Dan pointed us to a YouTube video he made a few years ago with Dr. Logan using these tools for a Deimos mission ( Another listener called wanting to know the likelihood of an EML2 mission actually happening. Dan explained why he believed this mission to be the next stepping stone in HSF. More was discussed about SLS with Dan raising some concerns about its real capabilities & wondering if Congress is being sold unrealistic expectations. We talked about heavy lift in general & with the support of properly placed depots. SLS and the difference with a Falcon Heavy were also discussed in terms of what the differences would mean in payload, number of launches, costs, risks, etc. Please post your comments/questions on The Space Show blog. You can contact either guest through me.

About our guests...

Dan Adamo
Dan Adamo is a graduate of the University of Rochester (BS Optical Engineering, 1975) and the University of Houston, Clear Lake City (MS Physical Sciences, 1981). From 1979 to 2008, he was employed as a contractor at Johnson Space Center. Throughout that interval, he was involved with space mission trajectory simulation, design, and operations. Beginning in 1990, he supported 60 Space Shuttle flights from Mission Control's Flight Dynamics Officer (FDO) Console. In July 2008, he retired from regular employment to pursue astrodynamics research and consulting tasks full-time. He regularly participates in educational outreach activities.

Dr. John Jurist
Dr. Jurist was simultaneously a physicist and a medical researcher before becoming involved in business. He earned degrees in biophysics and nuclear medicine while he was at the UCLA School of Medicine with his dissertation work performed in the Division of Orthopedic Surgery. Dr. Jurist has held faculty positions at the University of Wisconsin (Madison) in the Medical School’s Division of Orthopedic Surgery and in the Space Science and Engineering Center. In the former, he studied human factors in space flight during Apollo and what was then called Apollo Applications and organized a metabolic bone disease laboratory for translational research. In the latter during the early 1970s, he was team leader of the group that transmitted the first medical imaging over communications satellite links in a precursor to telemedicine. In the business arena, he created and ran a biomedical engineering consulting firm, was president of a successful outpatient surgical center, and founded a nonprofit medical research institute and ran it for four years. Dr. Jurist is experienced in evaluating a business plan and in running a business. He has applied his experience to the developing NewSpace industry as an investor in several small NewSpace corporations, supported R&D in others with corporate grants, and has partly funded academic propulsion, robotics, and biodynamics research groups at multiple universities. Among other professional organizations, he is currently a Life Member of the International Association of Military Flight Surgeon Pilots, an Associate Fellow of the Aerospace Medical Association, an Emeritus member of the Orthopaedic Research Society, and a Fellow of the Gerontological Society. His teaching and research activities revolve around his present positions of Adjunct Professor of Space Studies in the Odegard School of Aerospace Sciences at UND and Adjunct Professor of Biophysics and Aviation at Rocky Mountain College.

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