Results 1 to 10 of about 92,393 (340)

High-resolution Satellite Imaging of the 2004 Transit of Venus and Asymmetries in the Cytherean Atmosphere [PDF]

open access: bronze, 2011
This paper presents the only space-borne optical-imaging observations of the 2004 June 8 transit of Venus, the first such transit visible from Earth since AD 1882.
Pasachoff, Jay M.   +2 more
core   +4 more sources

Time synchronization via the transit satellite at Mizusawa [PDF]

open access: green, 1978
Time signals emitted from Transit satellites and received by the NAVICODE type receiver at Mizusawa, Japan are presented. The International Latitude Observatory of Mizusawa and the U. S. Naval Observatory were compared using the time signals. Propagation
Hara, J., Sato, K. H.
core   +2 more sources

Visual Simulation Analysis Platform for Satellite Load Based on Cesium [PDF]

open access: yesJisuanji gongcheng, 2020
Existing simulation analysis and visualization programs for satellite loads suffer from poor portability,difficulty in sharing simulation results and high hardware requirements for real-time calculation and rendering.To address the problems,this paper ...
SU Haoxiang, DONG Zhenghong, YANG Fan, LIU Lihao
doaj   +1 more source

High-precision Remote Sensing Satellite Covering Method over Ground Based on Geometric Topology [PDF]

open access: yesJisuanji gongcheng, 2017
When the grid point method is used in the remote sensing satellite covering method over the ground,if the object region to be analyzed is very large and the requirement for precision is very high,the space complexity and time complexity will be increased
WU Xiaoyang,SHEN Xiajiong,WANG Gengke,YU Tao,HAN Daojun
doaj   +1 more source

Forest Fire Patterns and Lightning-Caused Forest Fire Detection in Heilongjiang Province of China Using Satellite Data

open access: yesFire, 2023
Large forest fires can cause significant damage to forest ecosystems and threaten human life and property. Heilongjiang Province is a major forested area in China with the highest number and concentration of lightning-caused forest fires in the country ...
Qiangying Jiao   +5 more
doaj   +1 more source

Giant Outer Transiting Exoplanet Mass (GOT ’EM) Survey. III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-transit Jupiter Orbiting TOI-2010

open access: yesThe Astronomical Journal, 2023
Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates.
Christopher R. Mann   +50 more
doaj   +1 more source

Multi-Scene Doppler Power Spectrum Modeling of LEO Satellite Channel Based on Atlas Fingerprint Method

open access: yesIEEE Access, 2021
The modeling of low earth orbit (LEO) satellite channel depends on its Doppler power spectrum. Due to satellite during transit, diversity and dynamic channel scene, the modeling of Doppler power spectrum has two serious problems: one is that the shape of
Wen Liu   +7 more
doaj   +1 more source

Measuring positive public transit accessibility using big transit data

open access: yesGeo-spatial Information Science, 2021
Most of the current existing accessibility measures quantify the potential of reaching desirable opportunities across space and time. Nevertheless, these potential measurements only illustrate the maximum possible accessibility a person can have, which ...
Tong Zhang, Wenyuan Zhang, Zhenxuan He
doaj   +1 more source

The chemokine receptor CXCR4 regulates satellite cell activation, early expansion, and self-renewal, in response to skeletal muscle injury

open access: yesFrontiers in Cell and Developmental Biology, 2022
Acute skeletal muscle injury is followed by satellite cell activation, proliferation, and differentiation to replace damaged fibers with newly regenerated muscle fibers, processes that involve satellite cell interactions with various niche signals.
Ahmed S. Shams   +17 more
doaj   +1 more source

A Blind Search for Transit Depth Variability with TESS

open access: yesThe Astronomical Journal, 2023
The phenomenon of transit depth variability offers a pathway through which processes such as exoplanet atmospheric activity and orbital dynamics can be studied.
Gavin Wang, Néstor Espinoza
doaj   +1 more source

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