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(90075) 2002 VU94
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Asteroid on an eccentric orbit
September 2020
yes
(90075) 2002 VU 94
#FFC2E0
NEAT
Palomar Obs.
13 November 2002
(90075) 2002 VU 94
ApolloNEOPHA
4 September 2017 (JD 2458000.5)
0
62.16 yr (22,704 days)
3.3631 AU
0.9045 AU
2.1338 AU
0.5761
3.12 yr (1,138 days)
26.512°
0.3162 ms / day
8.9155°
226.78°
30.617°
0.0301 AU11.7 LD
2.233 0.084 km2.59 km (calculated)
7.878 0.002 h7.879 0.002 hlcdb-Warner-2018a7.88 0.01 h7.90 0.01 h
0.20 (assumed)0.294 0.040
S (assumed)
15.215.3
(90075) 2002 VU 94 is an asteroid on an eccentric orbit, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 2.5 kilometers in diameter. It was discovered on 13 November 2002, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. It is one of the largest potentially hazardous asteroids known.
Orbit and classification
2002 VU 94 is a member of the dynamical Apollo group, which are Earth-crossing asteroids. Apollo asteroids are the largest subgroup of near-Earth objects. It orbits the Sun at a distance of 0.9–3.4 AU once every 3 years and 1 month (1,138 days; semi-major axis of 2.13 AU). Its orbit has an eccentricity of 0.58 and an inclination of 9° with respect to the ecliptic.
The body's observation arc begins with a precovery from the Digitized Sky Survey taken at the Palomar Observatory in October 1955, or 47 years prior to its official discovery observation.
Close approaches
With an absolute magnitude of 15.3, 2002 VU 94 is one of the brightest and largest known potentially hazardous asteroid (see PHA-list). It has an Earth minimum orbital intersection distance of 0.0301 AU km on off 3, which translates into 11.7 lunar distances. On 18 May 2092, the body will make its closest near-Earth encounter at a nominal distance of 0.095 AU (37 LD). The asteroid is also Mars-crosser, crossing the orbit of the Red Planet at 1.66 AU.
Physical characteristics
2002 VU 94 is an assumed, stony S-type asteroid.
Rotation period
In 2014 and 2017, several rotational lightcurveslightcurve-plots-Warner of 2002 VU 94 were obtained from photometric observations by American astronomer Brian Warner at the Palmer Divide Station (U82) in California.lcdb-Warner-2018a Lightcurve analysis gave a consolidated rotation period of 7.879 hours with a brightness amplitude between 0.31 and 0.64 magnitude (U=3-).lcdb-Warner-2018a
In 2017, Warner also modeled the photometric data and determined a sidereal period of 7.878512 hours, as well as a spin axis of (73.0°, −50.0°) in ecliptic coordinates (λ, β).
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, 2002 VU 94 measures 2.233 kilometers in diameter and its surface has an albedo of 0.294, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20, and calculates a diameter of 2.59 kilometers based on an absolute magnitude of 15.3.
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 30 August 2004. As of 2018, it has not been named.
Notes
lcdb-Warner-2018a Warner (2018) web: Observation from 2017-08-12. Rotation period 7.879 0.002 hours with a brightness amplitude of 0.64 0.02 mag. Quality Code of 3-. Currently unpublished (not on ADS). Summary figures for (90075) at the LCDB
lightcurve-plots-Warner Four lightcurve plots of (90075) 2002 VU 94 by B. D. Warner at CS3 (2014/2017). Plot-1, Plot-2, Plot-3 and Plot-4. Summary figures at the LCDB and CS3 website.
References
30em 2017-12-22 last obs.
JPL Small-Body Database Browser: 90075 (2002 VU94)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2090075
Jet Propulsion Laboratory
18 January 2018
90075 (2002 VU94)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=90075
18 January 2018
MPC/MPO/MPS Archive
Minor Planet Center
https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
24 February 2018
List of the Potentially Hazardous Asteroids (PHAs)
Minor Planet Center
https://www.minorplanetcenter.net/iau/lists/t_phas.html
18 January 2018
90075
18 January 2018
6
C. R. Nugent
A. Mainzer
J. Masiero
J. Bauer
R. M. Cutri
T. Grav
E. Kramer
S. Sonnett
R. Stevenson
E. L. Wright
December 2015
NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N
The Astrophysical Journal
814
2
13
2015ApJ...814..117N
10.1088/0004-637X/814/2/117
1509.02522
18 January 2018
Warner, Brian D.
April 2015
Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 October–December
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42..115W
The Minor Planet Bulletin
42
2
115–127
1052-8091
2015MPBu...42..115W
18 January 2018
Warner, Brian D.
January 2015
Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 June–October
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42...41W
The Minor Planet Bulletin
42
1
41–53
1052-8091
2015MPBu...42...41W
18 January 2018
Warner, Brian D.
July 2017
Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2016 December thru 2017 April
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2017MPBu...44..223W
The Minor Planet Bulletin
44
3
223–237
1052-8091
2017MPBu...44..223W
18 January 2018
External links
Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend
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