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您的检索式：作者名="Marco Cinelli"
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| 1 | Probe lifetime around natural satellites with obliquity显示文摘The dynamics of a probe orbiting a moon can be significantly influenced by the non-coincidence between the moon's equatorial and orbital planes.Thus,we performed a general analysis about the effects of the angle(obliquity)between the above-mentioned planes and of the angle(nodal phasing)between the nodal lines of the mother planet's apparent orbit and the probe orbit on the lifetime of the probe.The lifetime,strictly correlated to the variations in eccentricity of the probe orbit,was evaluated starting from low values of the semi-major axis,moderate eccentricity,and high inclination to offer high ground spatial resolution and extend latitudinal coverage of the natural satellite.This investigation,carried out through numerical simulations,may be useful for identifying the optimal initial conditions of the probe's orbit elements,leading to an important increase in the probe lifetime in missions devoted to the exploration of natural satellites. | Marco Cinelli Hanlun Lei Emiliano Ortore Christian Circi | 2022 | Astrodynamics2022，6，4： | 0 |
| 2 | Geometrical approach for an optimal inter-satellite visibility显示文摘In the eld of satellite constellations,an important requirement is often represented by the possibility to exchange data among the satellites or exploit mutual visibility to carry out measurements on the parameters of the Earth's atmosphere.Therefore,recursive and routing algorithms are usually implemented to evaluate inter-satellite visibility intervals.However,to design the con guration of the constellation,it is important to consider the orbital conditions that guarantee the mutual visibility between couples of satellites.Thus,in this study,a geometric analysis was performed to identify the optimal inter-satellite visibility conditions,expressed in terms of the di erence in the true anomaly between satellites characterized by di erent orbital con gurations.This approach allows a handy constellation design,without performing a numerical analysis.It is particularly useful in the case of a high number of satellites,when numerical techniques require signi cant computational e ort.Therefore,it is possible to considerably simplify the design of a constellation in which the mutual visibility between couples of satellites is always guaranteed.This type of constellation,usually referred to as satellite chain,can be exploited in several network services and remote sensing systems devoted to enhancing the knowledge of atmospheric parameters. | Marco Cinelli Emiliano Ortore Giovanni Laneve Christian Circi | 2021 | Astrodynamics2021，5，3： | 0 |
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