Results 41 to 50 of about 171,503 (343)

Preatmospheric Detection of a Meter-sized Earth Impactor

open access: yesThe Planetary Science Journal, 2023
On 2020 September 18 U.S. Government (USG) sensors detected a bolide with peak bolometric magnitude of −19 over the Western Pacific. The impact was also detected by the Geostationary Lightning Mapper instrument on the GOES-17 satellite and infrasound ...
David L. Clark   +5 more
doaj   +1 more source

The analysis of structural fatigue under cyclic temperature loads [PDF]

open access: yesОмский научный вестник, 2021
A problem has been identified related to deformations of aircraft structures operating in the extreme north and orbital objects in near-earth orbits under conditions of cyclic alternating temperature loads.
I. Yu. Lesnyak   +2 more
doaj   +1 more source

FAST ROTATION OF A SUBKILOMETER-SIZED NEAR-EARTH OBJECT 2011 XA3 [PDF]

open access: yes, 2014
We present light curve observations and their multiband photometry for near-Earth object (NEO) 2011 XA3. The light curve has shown a periodicity of 0.0304 ± 0.0003 days (= 43.8 ± 0.4 minutes).
S. Urakawa   +4 more
semanticscholar   +1 more source

Report of workshop "Future research plans for solid Earth sciences in the Antarctic Ocean"

open access: yesAntarctic Record, 2000
A workshop on "Future research plans for solid Earth sciences in the Antarctic Ocean" was held on February 17,2000. The main object of the workshop was to make concrete research plans for solid Earth sciences in the Antarctic Ocean by clarifying various ...
Yoshifumi Nogi
doaj   +1 more source

FEATURES OF KOTLIN ORBIT ESTIMATION LIBRARY

open access: yesOdessa Astronomical Publications, 2018
Since the launch of Sputnik 1, the number of objects in near-earth orbit has been constantly increasing. The growth of number of these objects increases the risk of their collisions with existing satellites and ones which will be launched, that can be ...
L. S. Shakun
doaj   +1 more source

Nuclear and Orbital Characterization of the Transition Object (4015) 107P/Wilson–Harrington

open access: yesThe Planetary Science Journal, 2023
Comet 107P/Wilson–Harrington, cross-listed as asteroid 4015, is one of the original transition objects whose properties do not neatly fit into a cometary or asteroidal origin.
Theodore Kareta, Vishnu Reddy
doaj   +1 more source

Debiased albedo distribution for Near Earth Objects

open access: yesIcarus, 2020
We extend the most recent orbital and absolute magnitude Near Earth Object (NEO) model (Granvik et al., 2018) to provide a statistical description of NEO geometric albedos. Our model is calibrated on NEOWISE albedo data for the NEO population and reproduces these data very well once a simple model for the NEOWISE observational biases is applied.
Morbidelli, A.   +7 more
openaire   +8 more sources

New Tools for the Optimized Follow-Up of Imminent Impactors

open access: yesUniverse, 2021
The solar system is populated with, other than planets, a wide variety of minor bodies, the majority of which are represented by asteroids. Most of their orbits are comprised of those between Mars and Jupiter, thus forming a population named Main Belt ...
Maddalena Mochi, Giacomo Tommei
doaj   +1 more source

Adventures in Near-Earth Object Exploration [PDF]

open access: yesScience, 2006
Asteroids, because of the hazard they pose to Earth, are compelling targets for robotic and human space exploration. Yet because of their exotic low-gravity environment, simply landing on an asteroid appears to be much more challenging than we had appreciated 5 or 10 years ago.
openaire   +3 more sources

The global impact distribution of Near-Earth objects [PDF]

open access: yesIcarus, 2016
Published in Icarus, 9 pages, 8 ...
Rumpf, Clemens   +2 more
openaire   +5 more sources

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