Results 31 to 40 of about 513,787 (184)
Orbits in a generalized two-body problem [PDF]
, 2003 The two-body problem is a well-known case of the general central force problem with an attractive, inverse square force. However, there are forms of spacecraft propulsion, such as solar sails and minimagnetospheric plasmapropulsion, which generate a ...
McInnes, C.R.
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Asymptotic analysis of displaced lunar orbits [PDF]
, 2009 The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Simo, Jules, McInnes, Colin R.
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GPS Satellites Orbits: Resonance [PDF]
Mathematical Problems in Engineering, 2009 The effects of perturbations due to resonant geopotential harmonics on the semimajor axis of GPS satellites are analyzed. For some GPS satellites, secular perturbations of about 4 m/day can be obtained by numerical integration of the Lagrange planetary equations considering in the disturbing potential the main secular resonant coefficients.
Damasceno Ferreira, Luiz Danilo +1 more
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Orbital Debris and the Market for Satellites
SSRN Electronic Journal, 2022 This paper studies the economic consequences of orbital debris for commercial outer-space activities. Spacecraft launches and other outer-space human activities produce pollution (i.e., orbital debris), which represent a hazardous negative externality increasing the risk of collision and the destruction of satellites.
Anelí Bongers, José L. Torres
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Universe, 2023 The new geodetic satellite LARES 2, cousin of LAGEOS and sharing with it almost the same orbital parameters apart from the inclination, displaced by 180 deg, was launched last year. Its proponents suggest using the sum of the nodes of LAGEOS and of LARES
Lorenzo Iorio
doaj +1 more source
Sensors, 2020 At present, Global Position System (GPS) navigation ephemeris mainly broadcasts satellite orbits with meter-level precision for standard point positioning and precise relative positioning. With the rapid development of real-time precise point positioning
Dehai Li +5 more
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Low-thrust enabled highly non-Keplerian orbits in support of future Mars exploration [PDF]
, 2011 The technology of high specific impulse propulsion systems with low thrust is improving, opening up numerous possibilities for future missions applying continuous thrust to force a spacecraft out of a natural Keplerian orbit into a displaced non ...
Bosquillon de Frescheville, Francois +5 more
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Remote SensingLaser Time Transfer (LTT) has proven to be able to improve remote time transfer accuracy compared to microwave technology. The impact of satellite clock errors and atmospheric delays during LTT will be further reduced in the common-view mode.
Han Xue +5 more
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OBSERVATIONS OF SPACE DEBRIS IN THE VICINITY OF ORBITS OF GLOBAL NAVIGATION SATELLITE SYSTEMS
Solar-Terrestrial Physics, 2020 The problem of the amount and characteristics of space debris in the vicinity of orbits of Global Navigation Satellite Systems (GNSS) is of significant interest from the viewpoint of safe operation of these systems.
I.V. Korobtsev +4 more
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Satellite Navigation, 2020 To provide competitive global positioning and timing services under the condition that monitoring stations are confined to Chinese territory, inter-satellite link (ISL) technology is used by the third-generation BeiDou Navigation Satellite System (BDS-3).
Rengui Ruan +6 more
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