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Review of the Space Communications Program of NASA's Space Operations Mission Directorate
The Space Communications Office (SCO) at NASA has two primary roles. The first is to manage two of the communications networks that enable spaceflight operations and research, and the second is to integrate agency-wide telecommunications issues. In 2005, NASA asked the NRC to review the effectiveness of the SCO in carrying out its responsibilities by assessing the overall quality of the space communications program. This report presents a review of each of the program elements within the SCO-the space network, NASA's integrated space network (NISN), spectrum management, standards management, search and rescue, communications and navigation architecture, technology, and operations integration. The review focuses on formulation of plans for each element, plan development methodology, connections with the broader community, and overall capabilities. Recommendations for improving SCO operations and organization are provided.
eBook
Deep Space Communications
A collection of some of the Jet Propulsion Laboratory's space missions selected to represent the planetary communications designs for and progression of various types of missions The text uses a case study approach to show the communications link performance resulting from the planetary communications design developed by the Jet Propulsion Laboratory (JPL). This is accomplished through the description of the design and performance of six representative planetary missions. These six cases illustrate progression through time of the communications system's capabilities and performance from 1970s technology to the most recent missions. The six missions discussed in this book span the Voyager for fly-bys in the 1970s, Galileo for orbiters in the 1980s, Deep Space 1 for the 1990s, Mars Reconnaissance Orbiter (MRO) for planetary orbiters, Mars Exploration Rover (MER) for planetary rovers in the 2000s, and the MSL rover in the 2010s. Deep Space Communications: Provides an overview of the Deep Space Network and its capabilities Examines case studies to illustrate the progression of system design and performance from mission to mission and provides a broad overview of the missions systems described Discusses actual flight mission telecom performance of each system Deep Space Communications serves as a reference for scientists and engineers interested in communications systems for deep-space telecommunications link analysis and design control.
eBook
Laser Space Communications
This groundbreaking resource is the first book to offer you a thorough, practical treatment of laser space communications. The book focuses on the feasibility of laser space communication links between satellites, satellites and airborne platforms, and satellites and ground based stations to achieve worldwide connectivity. You get expert guidance on weather avoidance approaches and adaptive antenna subsystems that help mitigate the effects of turbulence. The book presents simplified, yet highly accurate, engineering expressions of complex mathematics of turbulence that provide you with numerical values in the links' signal power budget. Moreover, you find an entire chapter devoted to noise photons and their effect on the bit error rate. This comprehensive volume covers a wide range of critical topics you need to understand for your work in the field, from a discussion on laser vs. RF communications in space, basic design features of a laser transceiver, and configuration of inter-satellite communication links, to selection of ground station locations, 5th Generation Internet (5-GENIN), and signal modulation schemes. The book is supported with over 70 illustrations and more than 100 equations.
eBook
Review of the space communication program of NASA's Space Operations Mission Directorate
The Space Communications Office (SCO) at NASA has two primary roles. The first is to manage two of the communications networks that enable spaceflight operations and research, and the second is to integrate agency-wide telecommunications issues. In 2005, NASA asked the NRC to review the effectiveness of the SCO in carrying out its responsibilities by assessing the overall quality of the space communications program. This report presents a review of each of the program elements within the SCO\"the space network, NASAs integrated space network (NISN), spectrum management, standards management, search and rescue, communications and navigation architecture, technology, and operations integration. The review focuses on formulation of plans for each element, plan development methodology, connections with the broader community, and overall capabilities. Recommendations for improving SCO operations and organization are provided.
eBook
Mars Rover Scrapes at Rock to 'Look at Something No One's Ever Seen'
\"The Perseverance rover took a well-deserved break in October [2021] during solar conjunction, but it's back to investigating intriguing rocks in Jezero Crater on Mars.\" (CNN Wire Service) Learn more about the rover's mission to collect rock and dirt samples on Mars.
Newspaper Article
Spacecraft to Send Home Data from Mercury
\"Messenger takes off in July [2004], beginning a decade of discovery for scientists at the Johns Hopkins Applied Physics Laboratory, who will guide the spacecraft on its long journey into orbit around Mercury.\" (Herald-Dispatch) Learn more about the Messenger spacecraft's mission to Mercury. Testing of the spacecraft before its launch and communications between Earth and Messenger are discussed.
Newspaper Article
Day 3: Beagle 2 Remains Silent
\"A third attempt to confirm the survival of the European Mars lander failed...when a NASA spacecraft swept over the planned touchdown site on the Red Planet without picking up a signal.\" (Daily Camera) Read about the Beagle 2's mission to Mars and find out why scientists are optimistic about the fate of the Beagle 2 despite having lost contact with the spacecraft. Efforts to reestablish contact with the spacecraft and continue the mission are detailed.
Newspaper Article