Tag Archives: Chris DeBoy

New Horizons Flyover of Pluto

Two years ago on July 14, 2015, the New Horizon spacecraft reached Pluto. To celebrate this anniversary NASA released a Pluto flyby video.

Using actual New Horizons data and digital elevation models of Pluto and its largest moon Charon, mission scientists have created flyover movies that offer spectacular new perspectives of the many unusual features that were discovered and which have reshaped our views of the Pluto system – from a vantage point even closer than the spacecraft itself.

This dramatic Pluto flyover begins over the highlands to the southwest of the great expanse of nitrogen ice plain informally named Sputnik Planitia. The viewer first passes over the western margin of Sputnik, where it borders the dark, cratered terrain of Cthulhu Macula, with the blocky mountain ranges located within the plains seen on the right. The tour moves north past the rugged and fractured highlands of Voyager Terra and then turns southward over Pioneer Terra — which exhibits deep and wide pits — before concluding over the bladed terrain of Tartarus Dorsa in the far east of the encounter hemisphere.

Digital mapping and rendering were performed by Paul Schenk and John Blackwell of the Lunar and Planetary Institute in Houston.


New Horizons is a space probe launched by NASA on 19 January 2006, to the dwarf planet Pluto and on an escape trajectory from the Sun. It is the first man-made spacecraft to go to Pluto. Its flight took eight years. It arrived at the PlutoCharon system on July 14, 2015. It flew near Pluto and took photographs and measurements while it passed. At about 1 kilobit per second, it took 15 months to transmit them back to Earth.

The New Horizons spacecraft

The primary mission of New Horizons is to study Pluto and its system of moons. The secondary mission is to study any objects in the Kuiper Belt if something became available for a flyby.

The space probe set the record for the fastest man-made object ever launched, with the Earth-relative speed of about 16.26 km/s, although, arguably, the Helios probes got a faster Sun-relative speed. It used a gravity assist from Jupiter to get its high speeds without having to burn as much monopropellant (weak rocket fuel) as needed to fly directly to Pluto.

ATI instructors who helped plan, develop and engineer the New Horizons Mission. These include the following engineers and scientists, with their bios and links to their related ATI courses.

1. Dr. Alan Stern http://aticourses.com/planetary_science.htm

Dr. Alan Stern is a planetary scientist, space program executive, aerospace consultant, and author. In 2010, he was elected to be the President and CEO of The Golden Spike Company, a commercial space corporation planning human lunar expeditions. Additionally, since 2009, he has been an Associate Vice President at the Southwest Research Institute, and since 2008 has had his own aerospace consulting practice.

Dr. Stern is the Principal Investigator (PI) of NASA’s $720M New Horizon’s Pluto-Kuiper Belt mission, the largest PI-led space mission ever launched by NASA. New Horizons launched in 2006 and is arriving July 14, 2015. Dr. Stern is also the PI of two instruments aboard New Horizons, the Alice UV spectrometer and the Ralph Visible Imager/IR Spectrometer.

2. Eric Hoffman




Eric Hoffman has designed space-borne communications and navigation equipment and performed systems engineering on many APL satellites and communications systems. He has authored over 60 papers and holds 8 patents in these fields. Mr. Hoffman was involved in the proposal (as well as several prior Pluto mission concepts).  He chaired the major system level design reviews (and now teaches the course� Effective Design Reviews).  He was Space Department Chief Engineer during the concept, design, fabrication, and test of New Horizons. His still actively consulting in the field. He is an Associate Fellow of the AIAA and coauthor of the leading textbook Fundamentals of Space Systems

3. Chris DeBoy


Chris DeBoy leads the RF Engineering Group in the Space Department at the Johns Hopkins University Applied Physics Laboratory, and is a member of APL’s Principal Professional Staff. He has over 20 years of experience in satellite communications, from systems engineering (he is the lead RF communications engineer for the New Horizons Mission to Pluto) to flight hardware design for both Low-Earth orbit and deep-space missions. He holds a BSEE from Virginia Tech, a Master’s degree in Electrical Engineering from Johns Hopkins, and teaches the satellite communications course for the Johns Hopkins University.

4. Dr. Mark E. Pittelkau


Dr. Pittelkau was previously with the Applied Physics Laboratory, Orbital Sciences Corporation, CTA Space Systems (now Orbital), and Swales Aerospace. His experience in satellite systems covers all phases of design and operation, including conceptual design, implementation, and testing of attitude control systems, attitude and orbit determination, and attitude sensor alignment and calibration, control-structure interaction analysis, stability and jitter analysis, and post-launch support. His current interests are precision attitude determination, attitude sensor calibration, orbit determination, and optimization of attitude maneuvers. Dr. Pittelkau earned the B.S. and Ph. D. degrees in Electrical Engineering from Tennessee Technological University and the M.S. degree in EE from Virginia Polytechnic Institute and State University.

5. Douglas Mehoke


Douglas Mehoke is the Assistant Group Supervisor and Technology Manager for the Mechanical System Group in the Space Department at The Johns Hopkins University Applied Physics Laboratory. He has worked in the field of spacecraft and instrument thermal design for 30 years, and has a wide background in the fields of heat transfer and fluid mechanics. He has been the lead thermal engineer on a variety spacecraft and scientific instruments, including MSX, CONTOUR, and New Horizons. He is presently the Technical Lead for the development of the Solar Probe Plus Thermal Protection System.  He was the original thermal engineer for New Horizons, the mechanical system engineer, and is currently the spacecraft damage lead for the flyby Hazard Team. Other JHU/APL are currently teaching the Spacecraft Thermal Control course.

6. Steven Gemeny


Steve Gemeny is a Principal Program Engineer and a former Senior Member of the Professional Staff at The Johns Hopkins University Applied Physics Laboratory, where he served as Ground Station Lead for the TIMED mission to explore Earth’s atmosphere and Lead Ground System Engineer on the New Horizons mission to explore Pluto by 2020. Mr. Gemeny is an experienced professional in the field of Ground Station and Ground System design in both the commercial world and on NASA Science missions with a wealth of practical knowledge spanning nearly three decades. Mr. Gemeny delivers his experiences and knowledge to his ATIcourses’ students with an informative and entertaining presentation style. Mr Gemeny is Director Business Development at Syntonics LLC, working in RF over fiber product enhancement, new application development for RF over fiber technology, oversight of advanced DOD SBIR/STTR research and development activities related to wireless sensors and software defined antennas.

7. John Penn


John Penn is currently the Team Lead for RFIC Design at Army Research Labs. Previously, he was a full-time engineer at the Applied Physics Laboratory for 26 years where he contributed to the New Horizons Mission. He joined the Army Research Laboratory in 2008. Since 1989, he has been a part-time professor at Johns Hopkins University where he teaches RF & Microwaves I & II, MMIC Design, and RFIC Design. He received a B.E.E. from the Georgia Institute of Technology in 1980, an M.S. (EE) from Johns Hopkins University (JHU) in 1982, and a second M.S. (CS) from JHU in 1988.

8. Timothy Cole




Timothy Cole is a leading authority with 30 years of experience exclusively working in electro-optical systems as a system and design engineer. While at Applied Physics Laboratory for 21 years, Tim was awarded the NASA Achievement Award in connection with the design, development, and operation of the Near-Earth Asteroid Rendezvous (NEAR) Laser Radar and was also the initial technical lead for the New Horizons LOng-Range Reconnaissance Imager (LORRI instrument).  He has presented technical papers addressing space-based laser altimetry all over the US and Europe. His industry experience has been focused on the systems engineering and analysis associated development of optical detectors, wireless ad hoc remote sensing, exoatmospheric sensor design and now leads ICESat-2 ATLAS altimeter calibration effort.

9. Robert Moore


Robert C. Moore worked in the Electronic Systems Group at the JHU/APL Space Department since 1965 and is now a consultant. He designed embedded microprocessor systems for space applications. He led the design and testing efforts for the New Horizons spacecraft autonomy subsystem. Mr. Moore holds four U.S. patents. He teaches for ATIcourses and the command-telemetry-data processing segment of “Space Systems” at the Johns Hopkins University Whiting School of Engineering.

10. Jay Jenkins


Jay Jenkins is a Systems Engineer in the Human Exploration and Operations Mission Directorate at NASA and an Associate Fellow of the AIAA. His 24-year aerospace career provided many years of experience in design, analysis, and test of aerospace power systems, solar arrays, and batteries. His career has afforded him opportunities for hands-on fabrication and testing, concurrent with his design responsibilities. He was recognized as a winner of the ASME International George Westinghouse Silver Medal for his development of the first solar arrays beyond Mars’ orbit and the first solar arrays to orbit the planet, Mercury. He was recognized with two Best Paper Awards in the area of Aerospace Power Systems.



Riva, Md., [DATE]—An upcoming course is just the ticket for satellite and spacecraft engineers who are looking to build on their technical expertise with broadly marketable skills that will enable them to take on more expansive roles in the satellite communications industry. Developed by Applied Technology Institute (ATIcourses), a leading provider of classroom-based and online training programs geared for space industry professionals, “Satellite Communications Design and Engineering” will combine a thorough overview of how communications satellites function with information-packed modules devoted to the practical skills necessary to design and operate satellite communications networks.

Participants in the program, set for October 15-17, 2013, in Columbia, Md., will learn the mathematical and other skills necessary to perform and verify link budget calculations, which are essential to ensuring that a satellite connection can carry data efficiently and reliably. They will also gain the ability to evaluate satellite networks independently and in collaboration with other satellite professionals. In addition, attendees will learn how Earth stations and transponders function, gain an understanding of phenomena such as rain fade, and develop a grasp of the forces that affect how a satellite orbits the Earth.

The three-day course will be taught by Chris DeBoy, head of the RF Engineering Group in the Space Department at the renowned Applied Physics Laboratory run by The Johns Hopkins University. DeBoy is an expert in the development of satellite communications systems and spacecraft designed for deep-space missions. He is the lead RF communications engineer for NASA’s New Horizons Mission to Pluto.

DeBoy replaces another space industry veteran at the helm of the course, which is offered periodically by ATI. Robert Nelson, a satellite communications expert, author, and consultant, taught the program until his passing earlier this year.

Further details about the program, including registration and cost information, are at www.aticourses.com/Satellite_Communications_Design_Engineering.htm.

About Applied Technology Institute (ATIcourses or ATI)

ATIcourses is a national leader in professional development seminars in the technical areas of space, communications, defense, sonar, radar, engineering, and signal processing. Since 1984, ATIcourses has presented leading-edge technical training to defense and NASA facilities, as well as DOD and aerospace contractors. ATI’s programs create a clear understanding of the fundamental principles and a working knowledge of current technology and applications. ATI offers customized on-site training at your facility anywhere in the United States, as well as internationally, and over 200 annual public courses in dozens of locations. ATI is proud to have world-class experts instructing courses. For more information, call 410-956-8805 or 1-888-501-2100 (toll free), or visit them on the web at www.ATIcourses.com.

Note: Accredited media are invited to attend for free.

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