exterminate
发表于 2025-3-21 18:46:27
书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0283944<br><br> <br><br>书目名称Dynamics and Astrometry of Natural and Artificial Celestial Bodies读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0283944<br><br> <br><br>
裁决
发表于 2025-3-21 21:47:45
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把…比做
发表于 2025-3-22 02:04:22
Earth Rotation in the Hipparcos Reference Frame the solution (celestial pole offsets, rheological parameters of the Earth, certain instrumental constants). The mathematical model of the solution is described, and the results based on the observations made with 46 instruments at 29 observatories and a preliminary Hipparcos catalog are presented.
Misnomer
发表于 2025-3-22 06:20:40
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Mortar
发表于 2025-3-22 09:26:39
Rosetta Radio Science Investigationsucture, the composition and roughness of the nucleus surface, the abundance of large dust grains and the plasma content in the coma and the combined dust and gas mass flux on the orbiter. RSI will make use of the radio subsystem of the Rosetta spacecraft.
exorbitant
发表于 2025-3-22 15:19:31
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exorbitant
发表于 2025-3-22 20:31:24
https://doi.org/10.1007/978-3-86226-841-2 its ephemeris uncertainties can be dramatically reduced with the use of radar Doppler and delay data taken when the body is relatively close to the Earth. The combination of radar and optical angle data taken at close Earth distances just before a spacecraft encounter can result in surprisingly small target body ephemeris uncertainties.
桉树
发表于 2025-3-22 22:54:59
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DEAWL
发表于 2025-3-23 05:05:35
https://doi.org/10.1007/978-3-86226-885-6D-based, NEA search programs expand. Moreover, studies of closely approaching NEAs benefit tremendously from the inverse fourth-power dependence of echo strength on target distance. For these reasons, I devote the bulk of this paper to NEAs.
HEDGE
发表于 2025-3-23 07:51:25
Comet and Asteroid Ephemerides for Spacecraft Encounters its ephemeris uncertainties can be dramatically reduced with the use of radar Doppler and delay data taken when the body is relatively close to the Earth. The combination of radar and optical angle data taken at close Earth distances just before a spacecraft encounter can result in surprisingly small target body ephemeris uncertainties.