Results 271 to 280 of about 3,764 (285)

Saturn's Irregular Satellites at True Opposition

open access: yes, 2022
In August 2021, five of Saturn's irregular satellites were perfectly aligned with the Earth and Sun at "true" opposition. We observed Albiorix, Kiviuq, Palliaq, Siarnaq, and Tarvos from SOAR for five nights using the Goodman imaging spectrograph to ...
Verbiscer, Anne   +5 more
openaire   +2 more sources

SATELLITE STUDIES OF ISOLATED IONOSPHERIC IRREGULARITIES

Canadian Journal of Physics, 1965
Ground-based observations of the radio signals propagated through the ionosphere from artificial satellites provide useful information about ionospheric irregularities. The technique has been extended to include recordings of the relative phase of the radio waves received at two stations as well as the customary amplitude recordings.
R. M. Turnbull, P. A. Forsyth
openaire   +1 more source

Irregular Fading of Satellite Transmissions

Nature, 1961
IN a paper by Kent1 it was stated that irregular fading of satellite transmissions on 40 Mc./s. from Sputnik 1 did not occur when the satellite was south of 50° N., and indeed was of very small amplitude on the average when the magnetic inclination at the sub-satellite point was less than 68°, the value at the observing station near Cambridge ...
openaire   +1 more source

Understanding Irregular Satellites

2016
Beginning with this Chapter, various observed phenomena due to the Lidov-Kozai effect in astronomical and astrophysical systems are considered. Historically, the first theoretical works on the effect by Lidov (Artif Satell Earth 8:5–45, 1961) were devoted to planetary satellites, both natural and artificial.
openaire   +1 more source

Ant Routing Algorithms for Irregular Satellite Constellations

2005
This paper shows a novel approach for routing datagrams in irregular satellite constellations, called Distributed Ant Routing (DAR). This approach belongs to the class of routing algorithms inspired by the behavior of the ant colonies in locating food and storing food.
ROSATI, LAURA   +2 more
openaire   +2 more sources

The Jovian Irregular Satellites with MIRI LRS

The irregular satellites of Jupiter are a swarm of small, asteroid-like objects in orbit from ~100-400 Jupiter radii from the planet. These objects are thought to have been captured after the planet formed, although their precise origins remain obscure. Previous results have found the Jovian irregular satellites to contain a wide abundance of materials,
Benjamin Sharkey   +5 more
openaire   +1 more source

The diffraction of satellite signals by isolated ionospheric irregularities

Journal of Atmospheric and Terrestrial Physics, 1971
Abstract Procedures are given for the rapid calculation of refraction and diffraction patterns produced by isolated ionospheric irregularities. These patterns are observed experimentally, and a sensitive polarisation angle recorder is also used to determine the associated changes in electron content.
openaire   +1 more source

New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations

Monthly Notices of the Royal Astronomical Society, 2016
A R Gomes-Junior, M Assafin, J Desmars
exaly  

Irregular Satellites of the Planets: Products of Capture in the Early Solar System

Annual Review of Astronomy and Astrophysics, 2007
David Jewitt, Nader Haghighipour
exaly  

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