Results 21 to 30 of about 399,303 (277)

Large-Scale, Multiple Level-of-Detail Change Detection from Remote Sensing Imagery Using Deep Visual Feature Clustering

open access: yesRemote Sensing, 2021
In the era of big data, where massive amounts of remotely sensed imagery can be obtained from various satellites accompanied by the rapid change in the surface of the Earth, new techniques for large-scale change detection are necessary to facilitate ...
Rasha S. Gargees, Grant J. Scott
doaj   +1 more source

A Real-Time Linear Prediction Algorithm for Detecting Abnormal BDS-2/BDS-3 Satellite Clock Offsets

open access: yesRemote Sensing, 2023
Due to space environment interference, imperfect data processing model, and the performance of atomic clocks, real-time satellite clock products often contain outliers or irregular biases.
Yaping Gao   +6 more
doaj   +1 more source

Orbital and Collisional Evolution of the Irregular Satellites [PDF]

open access: yesThe Astronomical Journal, 2003
The irregular moons of the Jovian planets are a puzzling part of the solar system inventory. Unlike regular satellites, the irregular moons revolve around planets at large distances in tilted and eccentric orbits. Their origin, which is intimately linked with the origin of the planets themselves, is yet to be explained.
David Nesvorn   +3 more
openaire   +1 more source

Aerial Imagery Based on Commercial Flights as Remote Sensing Platform

open access: yesSensors, 2020
Remote sensing is commonly performed via airborne platforms such as satellites, specialized aircraft, and unmanned aerial systems (UASs), which perform airborne photography using mounted cameras.
Toni Mastelic   +3 more
doaj   +1 more source

Properties of Irregular Satellites and Fragmenting Comets [PDF]

open access: yes, 2022
In this thesis, I investigate the nature of two small body populations; the irregular satellite populations of the giant planets and the properties of fragmented nuclei of comets. In both cases the objective is to understand evolutionary processes acting
Graykowski, Ariel
core   +1 more source

Combining OC-SVMs With LSTM for Detecting Anomalies in Telemetry Data With Irregular Intervals

open access: yesIEEE Access, 2020
To ensure the safety and stability of spacecrafts of which thousands of telemetry parameters are monitored, fast and accurate response to anomalies or potential hazards is very important and challenging. This task becomes more difficult when the obtained
Junfeng Wu   +4 more
doaj   +1 more source

Photometry of Irregular Satellites of Uranus and Neptune [PDF]

open access: yesThe Astrophysical Journal, 2004
13 pages (including 3 figures and 2 tables).
Grav, Tommy   +2 more
openaire   +2 more sources

Dynamics and Origin of the Irregular Satellites of the Giant Planets [PDF]

open access: yes, 2004
Although analytical studies on the secular motion of the irregular satellites have been published recently, these theories have not yet been satisfactorily reconciled with the results of direct numerical integrations. These discrepancies occur because in
Cuk, Matija
core   +5 more sources

Impact Rates in the Outer Solar System

open access: yesThe Planetary Science Journal, 2023
Previous studies of cometary impacts in the outer solar system used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (≲5°) in the Kuiper Belt.
David Nesvorný   +4 more
doaj   +1 more source

Colors and Shapes of the Irregular Planetary Satellites [PDF]

open access: yesThe Astronomical Journal, 2018
Abstract It is widely recognized that the irregular satellites of the giant planets were captured from initially heliocentric orbits. However, the mechanism of capture and the source region from which they were captured both remain unknown. We present an optical color survey of 43 irregular satellites of the outer planets conducted using
Graykowski, Ariel, Jewitt, David
openaire   +2 more sources

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