Results 151 to 160 of about 383,072 (432)
AttoSats: ChipSats, other Gram-Scale Spacecraft, and Beyond [PDF]
arXiv, 2019 The miniaturization of electronic and mechanical components has allowed for an unprecedented downscaling of spacecraft size and mass. Today, spacecraft with a mass between 1 to 10 grams, AttoSats, have been developed and operated in space. Due to their small size, they introduce a new paradigm in spacecraft design, relying on agile development, rapid ...
arxiv
Microbiological Burden on the Surfaces of Explorer XXXIII Spacecraft [PDF]
, 1967 Edmund M. Powers
openalex +1 more source
RCA Satcom 3-Axis spacecraft experience at geosynchronous altitude [PDF]
, 1977 The RCA Satcom space segment presently consists of two three-axis stabilized communication satellites which have been in orbit at geosynchronous altitudes for 11 and 8 months respectively.
Napoli, J., Seliga, J.
core +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Optical satellite communications provide high‐data rates with compact and power efficient payloads that can solve the bottlenecks of RF technologies. Photonic integrated circuits have the potential to reduce the cost, size, weight, and power consumption of satellite laser communications terminals, by integrating all the required photonic ...
Giulio Terrasanta +4 more
wiley +1 more source
Jovian planet missions for solar cell powered electric propulsion spacecraft [PDF]
, 1968 C. ZOLA
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Astronaut hazard during free-flight polar EVA [PDF]
, 1985 Extravehicular Activity (EVA) during Shuttle flights planned for the late 1980's includes several factors which together may constitute an astronaut hazard. Free-flight EVA is planned whereas prior United States Earth orbit EVA has used umbilical tethers
Hall, W. N.
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Spacecraft and Instrumentation
, 2016 The new scientific work in this thesis stems from data gathered and returned to Earth by the Cassini-Huygens spacecraft. Onboard the spacecraft is a suite of in situ instruments making field, particle and wave measurements for studying dust, plasma and magnetic fields around Saturn. There are also suites of optical remote sensing instruments (e.g.
openaire +2 more sources
Update on the German and Australasian Optical Ground Station Networks
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Networks of ground stations designed to transmit and receive at visible and infra‐red wavelengths through the atmosphere offer an opportunity to provide on‐demand, high‐bandwidth, secure communications with spacecraft in Earth orbit and beyond. This work describes the operation and activities of current free space optical communications (FSOC)
Nicholas J. Rattenbury +24 more
wiley +1 more source
Fourth-order gravity gradient torque of spacecraft orbiting asteroids [PDF]
arXiv, 2014 The dynamical behavior of spacecraft around asteroids is a key element in design of such missions. An asteroid's irregular shape, non-spherical mass distribution and its rotational sate make the dynamics of spacecraft quite complex. This paper focuses on the gravity gradient torque of spacecraft around non-spherical asteroids.
arxiv
, 1974 A turnstile slot antenna is disclosed, the antenna being for and integral with a spacecraft having a substantially cylindrical body portion. The antenna comprises a circumferential slot about the periphery of the spacecraft body portion with an annular ...
Munson, R. E.
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