Results 271 to 280 of about 4,818 (307)

New Satellite Drag Modeling Capabilities

44th AIAA Aerospace Sciences Meeting and Exhibit, 2006
This paper reviews the operational impacts of satellite drag, the historical and current capabilities, and requirements to deal with evo lving higher accuracy requirements. Modeling of satellite drag variations showed little improvement from the 1960’s to the late 1990’s. After three decades of essentially no quantitative progress, the problem is being
openaire   +1 more source

Propulsion requirements for drag-free satellites

Journal of Spacecraft and Rockets, 1970
Drag-free satellite design and propulsion requirements, noting orbit perturbation ...
openaire   +1 more source

Recommended Drag Coefficients for Aeronomic Satellites

2013
Densities derived from accelerometer measurements depend on the drag coefficient assigned to the satellite. Although laboratory measurements increase our understanding of gassurface interactions, they are not adequate to determine the appropriate drag coefficient because it is not known how the surface conditions at any particular altitude relate to ...
Mildred M. Moe, Steven D. Wallace, Kenneth Moe   +2 more
openaire   +1 more source

The Drag Brake Manned Satellite System

1960
The manned satellite designs which have been most frequently proposed are extrapolations either of airplanes or of missile nose cones. This paper presents a new approach to the design of a manned satellite system. The central feature of this design is a variable area drag brake.
R. W. Detra, A. R. Kantrowitz, F. R. Riddell, P. H. Rose   +3 more
openaire   +1 more source

Drag coefficients for astronomical observatory satellites

Journal of Spacecraft and Rockets, 1975
The first experimental European communications satellite Symphonie is a geostationary satellite. The satellite is designed and built in a joint project by French and German aerospace firms. A description is given of the basic technical concept of the satellite. The apogee motor is discussed along with the satellite stabilization system.
openaire   +1 more source

Formations of Drag-Free Satellites

56th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law, 2005
S. Theil, M. From, L. Pettazzi, S. Scheithauer   +3 more
openaire   +1 more source

A Comparison of Satellite Drag Measurement Techniques

1970
The effect of atmospheric drag on a satellite makes it possible to measure atmospheric density. Two approaches have been proposed: (1) Accelerometers may be mounted in the satellite to measure the vehicle acceleration which, together with the satellite mass, determines the drag force; (2) Alternatively, a drag-free satellite control system may be used.
openaire   +1 more source

Satellite drag coefficient modeling for thermosphere science and mission operations

Advances in Space Research, 2023
Piyush M Mehta, Nicholas H Crisp, Christian Siemes   +2 more
exaly  

Satellite Orbital Drag

2016
Eftyhia Zesta, Cheryl Y. Huang
openaire   +1 more source

The determination of atmospheric drag on artificial satellites

1963
While all the forces acting on a satellite in orbital motion produce short–periodic perturbations in the major axis, only solar–radiation pressure and atmospheric drag are capable of producing long–periodic and secular variations. In the absence of direct drag–pressure measurements, the atmospheric drag on a satellite can be determined from the secular
openaire   +1 more source