Results 21 to 30 of about 447,866 (197)

Preatmospheric Detection of a Meter-sized Earth Impactor

The 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, Paul A. Wiegert, Peter G. Brown, Denis Vida, Aren Heinze, Larry Denneau   +5 more
doaj   +1 more source

Easily retrievable objects among the NEO population [PDF]

, 2013
Asteroids and comets are of strategic importance for science in an effort to understand the formation, evolution and composition of the Solar System. Near-Earth Objects (NEOs) are of particular interest because of their accessibility from Earth, but also
C Simó, C Zagouras, C. R. McInnes, D. García Yárnoz, DL Richardson, DR Adamo, E Belbruno, E Canalias, G Gómez, G Gómez, G Tancredi, H-X Baoyin, J Kawaguchi, J. P. Sanchez, JP Sanchez, KC Howell, KC Howell, LA Kleiman, M Granvik, M Hénon, M Vasile, P Michel, P Veres, PW Chodas, R Brasser, S Greenstreet, SR Chesley, T Kwiatkowski, TL Edward, V Szebehely, WS Koon, Z Hasnain   +31 more
core   +2 more sources

The Yarkovsky Drift's Influence on NEAs: Trends and Predictions with NEOWISE Measurements [PDF]

, 2012
We used WISE-derived geometric albedos (p_V) and diameters, as well as geometric albedos and diameters from the literature, to produce more accurate diurnal Yarkovsky drift predictions for 540 near-Earth asteroids (NEAs) out of the current sample of \sim
A. Mainzer, Bowell, C. R. Nugent, Chamberlin, Danby, J. Bauer, J. Masiero, Larson, Mainzer, Mainzer, Mainzer, Mainzer, McMillan, Nugent, Scheeres, T. Grav, Vokrouhlický, Wright   +17 more
core   +1 more source

First Results from the rapid-response spectrophotometric characterization of Near-Earth Objects [PDF]

, 2019
As part of our multi-observatory, multi-filter campaign, we present \rmi color observations of 82 Near-Earth Objects (NEOs) obtained with the RATIR instrument on the 1.5m robotic telescope at the San Pedro Martir's National Observatory in Mexico.
Axelrod, Tim, Butler, Nathaniel, Jedicke, Robert, Mommert, Michael, Moskovitz, Nicholas, Navarro-Meza, Samuel, Pichardo, Barbara, Reyes-Ruiz, Mauricio, Trilling, David   +8 more
core   +2 more sources

ExploreNEOs VIII: Dormant Short-Period Comets in the Near-Earth Asteroid Population [PDF]

, 2015
We perform a search for dormant comets, asteroidal objects of cometary origin, in the near-Earth asteroid (NEA) population based on dynamical and physical considerations.
Bottke, W. F., Delbo, M., Emery, J. P., Fazio, G., Harris, A. W., Hora, J. L., Mommert, M., Mueller, M., Smith, H. A., Thomas, C. A., Trilling, D. E.   +10 more
core   +3 more sources

Asteroid Diameters and Albedos from NEOWISE Reactivation Mission Years 4 and 5 [PDF]

, 2020
The Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) spacecraft has been conducting a two-band thermal infrared survey to detect and characterize asteroids and comets since its reactivation in 2013 December.
Bauer, J. M., Cutri, R. M., Grav, T., Kramer, E., Mainzer, A. K., Masiero, Joseph R., Pittichová, J., Sonnett, S., Wright, E. L.   +8 more
core   +2 more sources

Adventures in Near-Earth Object Exploration [PDF]

Science, 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   +2 more sources

In Search of the Potentially Hazardous Asteroids in the Taurid Resonant Swarm

The Planetary Science Journal
The Taurid Complex is a large interplanetary system that contains comet 2P/Encke, several meteoroid streams, and possibly a number of near-Earth asteroids.
Jasmine Li, Quanzhi Ye, Denis Vida, David L. Clark, Eric C. Bellm, Richard Dekany, Matthew J. Graham, Frank J. Masci, Josiah Purdum, Benjamin Racine, Avery Wold   +10 more
doaj   +1 more source

Constraining the Limitations of NEATM-like Models: A Case Study with Near-Earth Asteroid (285263) 1998 QE2

The Planetary Science Journal, 2023
Near-Earth asteroids (NEAs) are a key test bed for investigations into planet formation, asteroid dynamics, and planetary defense initiatives. These studies rely on understanding NEA sizes, albedo distributions, and regolith properties.
Samuel A. Myers, Ellen S. Howell, Christopher Magri, Ronald J. Vervack Jr., Yanga R. Fernández, Sean E. Marshall, Patrick A. Taylor   +6 more
doaj   +1 more source

NEOWISE Data and Thermophysical Modeling of 98943 Torifune (2001 CC21)

The Planetary Science Journal
The Hayabusa2 ♯ flyby target 98943 Torifune (2001 CC _21 ) has an uncertain size based on an uncertain albedo and absolute magnitude. We have collected all the NEOWISE observations of 2001 CC _21 from 2021 November through 2024 February, a total of 132 ...
Edward L. (Ned) Wright, Joseph Masiero, Amy Mainzer   +2 more
doaj   +1 more source