The Crosslink Crossword, Spring 2010

The Crosslink Crossword, Spring 2010 Across 3. Accompanies tear 4. Tight spot 10. Courteous 11. ______ out, sing with oomph 12. Like railroad rails 13. Easily insulted 15. Where chess is played 19. A voice to avoid, it is said 21. Like home, Daddy-o 22. One who parrots 24. Bunch of cookies 27. Candy style […]  More »

The Back Page

Life at Aerospace: A Look Back   There was ready opportunity to learn about many of the former traditions and the campus lifestyle over the decades at The Aerospace Corporation as the editors and corporate archivist dug through material for this 50th anniversary issue of Crosslink. For example, did you know that in the “good […]  More »

Crosslink Spring 2010 Contributors

Contributors   What GPS Might Have Been—and Could Become John E. Clark (left), Principal Director, Space Systems, Navigation Division. His directorate oversees the design, development, assembly, test, and launch of Global Positioning System (GPS) satellites. Clark joined Aerospace as a member of the technical staff in 1979, working in the Energy Conservation Directorate in Government […]  More »

A Global Standard

A Global Standard A significant consequence of the development of GPS has been the establishment of this one system as a global standard for time, position, and datum. Time and position are easy to appreciate, but sometimes overlooked is the role of GPS in establishing a single worldwide datum. It turns out that specifying coordinates […]  More »

Transit: The GPS Forefather

Transit: The GPS Forefather Before there was GPS, there was the Navy navigation satellite system called Transit. Development began in 1958 at the Johns Hopkins University Applied Physics Laboratory; it was declared operational in 1964 and continued until 1996. The satellites were tracked by a series of ground stations and a command center that operated […]  More »

What GPS Might Have Been—and What It Could Become

What GPS Might Have Been—and What It Could Become Civilian and military GPS applications have become so ubiquitous, they are often considered routine appliances of daily life. These applications might not have been possible if early decisions about GPS had been made differently. John Langer, John Clark, and Thomas Powell   It is hard to […]  More »

DMSP Instruments: A 50-Year Legacy

DMSP Instruments: A 50-Year Legacy Aerospace expertise has been instrumental in maximizing the utility of the military’s preeminent weather-forecasting system. Donald Boucher and Anthony Stier   The mission of the Defense Meteorological Satellite Program (DMSP) is to collect and disseminate global visible and infrared (IR) cloud-cover data and other specialized meteorological, oceanographic, and solar-geophysical information […]  More »

PCs: Preliminary Concerns

PCs: Preliminary Concerns Following are excerpts from a Sept. 11, 1982, internal memo written by Harvey “Joe” Wertz of the Information Processing Division. The letter poses interesting questions on the advent of desktop computers and sheds light on some of the issues Aerospace was grappling with as personal computers were becoming commonplace.   Some Observations […]  More »

Aerospace-Developed Software

Aerospace-Developed Software During its 50-year existence, Aerospace has created a wide variety of software to support the engineering analyses that contribute to mission success. These software tools provide unique analysis capabilities that were not available in commercial software systems. Additionally, during the last 25 years, the staff has also developed sophisticated simulations that provide technical […]  More »

Highlights of the Early Days of Computing at The Aerospace Corporation

Highlights of the Early Days of Computing at The Aerospace Corporation The progression of computers from mainframes to personal computers, and the programming languages and software that evolved with these advances, has greatly enhanced the way Aerospace provides technical support to its customers. William Clarkson   The Mainframe Era In the 1960s, computers were large, […]  More »

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