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... Satellite in 1960 (Courtesy of the SSPI Space Timeline). The first dedicated civil Earth remote sensing satellite was the NASA Earth Resources Technology Satellite ...

... we are considering novel ways of receiving data from an interstellar probe where conventional communication technologies are challenged by the considerable distances involved. It is theoretically possible for a craft ... a tight lock on the signal, including the use of a constellation of assisting satellites, and multiple antennas on the receiving craft. We suggest interstellar precursor missions that ...

Image:DSCS.jpg 200 px Defense Satellite Communications Systems satellite II Category:Spacecraft

... to understand about the half century evolution of spacecraft—and communications satellites in particular—has been the pattern of “technology inversion”. This means that communications satellites have become larger, more capable, with larger and more powerful antennas, and yes, more costly. But this change has allowed users on the ground to access satellites ...

... a CubeSat mission’s downlink access time. Rather than create a purpose built satellite communications ground station network this paper proposes that CubeSat mission designers could leverage existing, ... Amateur radio operators may be characterized as early adopters of technology. As such enterprising members of the community have already adapted existing COTS hardware such as the Raspberry ...

... M-5.0," "Cabin Conditioning Equipment for a Manned Satellite," "Scientific Instrumentation of Unmanned Earth Satellites," "The Jodrell Bank Radio Telescope as a Space Communicator," "Satellite Tracking by Optical Methods," "Space Navigation," "Minimum Propulsion for Soft Moon Landing of Instruments." Extracted from the 1962 Publication ''Annotated Bibliography of Space Science and Technology with an ...

... satellite instrumentation, communications, tracking and trajectories. Typical titles in Volume 3 are: "The Capture Problem in the Three-Body Restricted Orbital Problem," "The Libration of a Satellite," "Perturbations in the Orbits of Artificial Satellites ... Earth Satellite, at Cape Chelyuskin." Extracted from the 1962 Publication ''Annotated Bibliography of Space Science and Technology with an ...

... by private companies on things such as communication satellites and by armed forces around the world for spy satellites and other government agencies for weather and navigation satellites, the number becomes more like $100 ...

... '''Year''' - 2001 '''Keywords''' - China, communications, satellites, geosynchronous '''JBIS Reference Code ''' - 2001.54.127 '''Number of Pages''' - 18 Abstract During 1984-1991 China launched a series of small communications satellites in the DFH-2 and DFH-2A series. This paper will review the programme, discussing the in-orbit behaviour of the satellites through to the termina ...

... and application driven software, actuators, sensors, communication and tracking systems, power, and multiple connecting devices. An early collaborative effort was the Space Transportation Avionics Technology Symposium held in Williamsburg, Virginia November 7 ... avionics requirements, architecture, process improvement, technology transition, vehicle health management, technology and guidance, navigation, and control technology. The goal of these studies was to provide "technology bridging" between the technology developers, the system integrators, and ...

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