Long-term dynamical evolution of high area-to-mass ratio debris released into high earth orbits

2010 ◽  
Vol 67 (1-2) ◽  
pp. 204-216 ◽  
Author(s):  
Luciano Anselmo ◽  
Carmen Pardini
Keyword(s):  
Dynamical Evolution ◽  
Mass Ratio ◽  
High Area ◽  
High Earth Orbits ◽  
Earth Orbits

Study of a population of space debris objects with a high area-to-mass ratio in high Earth orbits

2020 ◽  
Author(s):  
V.M. Agapov ◽  
I.E. Molotov ◽  
G.K. Borovin ◽  
A.I. Streltsov
Keyword(s):  
Space Debris ◽  
Orbital Motion ◽  
Center Of Mass ◽  
Light Curves ◽  
Mass Ratio ◽  
High Area ◽  
Motion Parameters ◽  
High Earth Orbits ◽  
Earth Orbits

The data on 498 space debris objects with a high area-to-mass ratio (HAMR) detected in 2016–2017 were analyzed to identify possible candidates for the role of "parent objects". As a result, the origin of several HAMR fragments was determined. These fragments separated from three different large objects in the geostationary orbit (GEO) region, including two functioning spacecraft and one rocket launcher stage. Observations of these three objects showed that there were no noticeable differences in their light curves, which indicates the absence of significant changes in the geometric shape, reflective characteristics and motion parameters relative to the center of mass. At least, both spacecraft continued to perform retention maneuvers in their positions on the GEO, and no unpredictable changes were detected in the orbital motion and in the stage light curve. Therefore, the formation of newly discovered fragments cannot be associated with the catastrophic destruction of the “parent objects”.

Dynamical evolution of high area-to-mass ratio objects in Molniya orbits

2013 ◽  
Vol 51 (11) ◽  
pp. 2136-2144 ◽  
Author(s):  
Rong-yu Sun ◽  
Chang-yin Zhao ◽  
Ming-jiang Zhang ◽  
Yong-Gang Hou
Keyword(s):  
Dynamical Evolution ◽  
Mass Ratio ◽  
High Area

Long-term dynamics of high area-to-mass ratio objects in high-Earth orbit

2013 ◽  
Vol 52 (8) ◽  
pp. 1545-1560 ◽  
Author(s):  
Aaron J. Rosengren ◽  
Daniel J. Scheeres
Keyword(s):  
Earth Orbit ◽  
Mass Ratio ◽  
High Area

scholarly journals Dynamical evolution of multiple-population globular clusters

2021 ◽  
Vol 502 (3) ◽  
pp. 4290-4304
Author(s):  
Enrico Vesperini ◽  
Jongsuk Hong ◽  
Mirek Giersz ◽  
Arkadiusz Hypki
Keyword(s):  
Structural Properties ◽  
Globular Clusters ◽  
First Generation ◽  
Radial Profile ◽  
Dynamical Evolution ◽  
Evolutionary Phase ◽  
Dynamical Parameters ◽  
Energy Equipartition

ABSTRACT We have carried out a set of Monte Carlo simulations to study a number of fundamental aspects of the dynamical evolution of multiple stellar populations in globular clusters with different initial masses, fractions of second generation (2G) stars, and structural properties. Our simulations explore and elucidate: (1) the role of early and long-term dynamical processes and stellar escape in the evolution of the fraction of 2G stars and the link between the evolution of the fraction of 2G stars and various dynamical parameters; (2) the link between the fraction of 2G stars inside the cluster and in the population of escaping stars during a cluster’s dynamical evolution; (3) the dynamics of the spatial mixing of the first-generation (1G) and 2G stars and the details of the structural properties of the two populations as they evolve toward mixing; (4) the implications of the initial differences between the spatial distribution of 1G and 2G stars for the evolution of the anisotropy in the velocity distribution and the expected radial profile of the 1G and 2G anisotropy for clusters at different stages of their dynamical history; and (5) the variation of the degree of energy equipartition of the 1G and the 2G populations as a function of the distance from the cluster’s centre and the cluster’s evolutionary phase.

Modeling the High Area-to-Mass Ratio Debris in GEO

2006 ◽  
Author(s):  
Michael Oswald ◽  
Sven Flegel ◽  
Sebastian Stabroth ◽  
Carsten Wiedemann ◽  
Peter Vörsmann ◽  
...  
Keyword(s):  
Mass Ratio ◽  
High Area

scholarly journals Geostationary secular dynamics revisited: application to high area-to-mass ratio objects

2016 ◽  
Vol 128 (2-3) ◽  
pp. 149-181 ◽  
Author(s):  
Fabien Gachet ◽  
Alessandra Celletti ◽  
Giuseppe Pucacco ◽  
Christos Efthymiopoulos
Keyword(s):  
Mass Ratio ◽  
Secular Dynamics ◽  
High Area

scholarly journals Comets (Existing Populations)

1994 ◽  
Vol 160 ◽  
pp. 77-94
Author(s):  
Ľ. Kresák
Keyword(s):  
Kuiper Belt ◽  
Dynamical Evolution ◽  
Oort Cloud ◽  
Survival Times ◽  
Evolutionary Time ◽  
Origin And Evolution ◽  
History Of ◽  
The Individual ◽  
Evolutionary Paths

The definition, population, extent, origin and evolution of the individual subsystems of comets and transitions between them are discussed, together with presentation of the relevant statistical data and their changes with time. The largest outer subsystems are unobservable, but their existence is documented by the necessity of progressive replenishment of the observable populations, with limited survival times. There is persuasive evidence for two different evolutionary paths, one from the Oort cloud and another from the Kuiper belt. While the extent and accuracy of the data available is increasing rapidly, the Jupiter family of comets is the only one for which the evolutionary time scales do not exceed by many orders of magnitude the history of astronomical observations. The individual comet populations differ from one another not only by the distribution of orbits, but also by the size distribution and aging rate of their members. Their dynamical evolution is coupled with disintegration processes, which make it questionable whether the present state can be interpreted as a long-term average.

scholarly journals ON THE EFFECTS OF SOLAR RADIATION PRESSURE ON THE DEVIATION OF ASTEROIDS

2021 ◽  
Vol 57 (2) ◽  
pp. 279-295
Author(s):  
L. O. Marchi ◽  
D. M. Sanchez ◽  
F. C. F. Venditti ◽  
A. F. B. A. Prado ◽  
A. K. Misra
Keyword(s):  
Solar Radiation ◽  
Radiation Pressure ◽  
Scientific Research ◽  
Orbital Plane ◽  
Solar Radiation Pressure ◽  
The Sun ◽  
Mass Ratio ◽  
High Area ◽  
Planetary Defense

In this work, we study the effects of solar radiation pressure (SRP) on the problem of changing the orbit of an asteroid to support planetary defense, scientific research, or exploitation of materials. This alternative considers a tethered reflective balloon (or a set of reflective balloons) attached to the asteroid, with a high area-to-mass ratio, to use the SRP to deflect a potentially hazardous asteroid (PHA) or to approximate the target asteroid to Earth. The tether is assumed to be inextensible and massless, and the motion is described only in the orbital plane of the asteroid around the Sun. The model is then used to study the effects that the tether length, the reflectivity coefficient, and the area-to-mass ratio have on the deviation of the trajectory of the asteroid.

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