Results 1 to 10 of about 41,640 (267)
Spectroscopic Links among Giant Planet Irregular Satellites and Trojans
The Planetary Science Journal, 2023 We collect near-infrared spectra (∼0.75–2.55 μ m) of four Jovian irregular satellites and visible spectra (∼0.32–1.00 μ m) of two Jovian irregular satellites, two Uranian irregular satellites, and four Neptune Trojans.
Benjamin N. L. Sharkey +4 more
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Re-recognized universality of Kozai oscillation on three-body dynamics [PDF]
Proceedings of the Japan Academy. Series B, Physical and Biological SciencesIn 1962, Yoshihide Kozai reported his findings on the secular dynamics of asteroids moving in orbits with high inclination and eccentricity. In contrast to the classic understanding of the stability of planetary motion in the solar system, Kozai showed ...
Masanori IYE, Takashi ITO
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Fusion of multi-source precipitation records via coordinate-based generative models [PDF]
Nature CommunicationsPrecipitation remains one of the most challenging climate variables to observe and predict. Existing datasets face intricate trade-offs: gauges are relatively trustworthy but sparse, satellites provide near-global coverage with retrieval uncertainties ...
Sencan Sun +7 more
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States' Responsibility to Operate Small Satellites in International Space Law [PDF]
فصلنامه علوم و فناوری فضایی, 2021 Many of the space applications that previously required the use of large, complex and expensive satellites have now been made possible by very small satellites due to the development of technology. The applicable international laws and regulations, which
Hamid Kazemi
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The influence the horizontal structure of the forest on the passing the L1 range of navigation satellites signals [PDF]
E3S Web of Conferences, 2021 Experimental data on the passing of signals from navigation satellites of the L1 range through forest plantations with an anisotropic horizontal tree arrangement structure are presented.
Sorokin Anatoly +4 more
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Irregular Layout for a Satellite’s Interferometric Array
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 We address the optimization problem of antenna placement on satellite-mounted interferometric synthetic-aperture instruments. In classic designs, the antennas on satellites are aligned regularly on the satellite’s frame.
Paul Krzakala +10 more
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Remote Sensing, 2021 Very High Throughput Satellites (VHTS) have a pivotal role in complementing terrestrial networks to increase traffic demand. VHTS systems currently assume a uniform distribution of traffic in the service area, but in a real system, traffic demands are ...
Flor G. Ortiz-Gomez +3 more
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A Scheduling Method of Using Multiple SAR Satellites to Observe a Large Area
Sensors, 2023 This paper presents a scheduling problem of using multiple synthetic aperture radar (SAR) satellites to observe a large irregular area (SMA). SMA is usually considered as a kind of nonlinear combinatorial optimized problem and its solution space strongly
Qicun Zheng +3 more
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Analysis of a Simulated Optical GSO Survey Observation for the Effective Maintenance of the Catalogued Satellites and the Orbit Determination Strategy [PDF]
Journal of Astronomy and Space Sciences, 2015 A strategy is needed for a regional survey of geosynchronous orbits (GSOs) to monitor known space objects and detect uncataloged space objects. On the basis of the Inter-Agency Debris Committee’s recommendation regarding the protected region of ...
Jin Choi +8 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Passive microwave satellite observations provide critical information for global forecast models, particularly in cloudy and/or precipitating conditions.
Yuriy V. Goncharenko +4 more
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