(484976) 2009 UN3

(2009 UN3 )

Discovery Circumstances:

Siding Spring Survey - Siding Spring Survey

19 Oct 2009

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

S

( 2)( 3)( 4)

Albedo:

-

-

Diameter:(km)

601 - 1344 m

($)

H:(mag)

18.63

( 5)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

0.77

( 6)

V-R:(mag)

0.46

( 7)( 8)

R-I:(mag)

-

-

Rotation Period:(hrs)

4.123

( 9)(10)

Quality:

3 !

( 9)(10)

Lightcurve Amplitude:(mag)

0.5

( 9)(10)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

(11)(12)

Spectral Observations:

-

-

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

$ - diameter range derived from H and assumed albedo for C and S type - 0.04 and 0.20 respectively

# - absolute magnitude H derived from astrometric observation via orbit determination - G value assumed to be 0.15

! - quality code according to Lagerkvist et al. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1162-1179.

References

( 1) M.P.E.C. 2009-U52

(002) Hicks, M. et al. (2010) ATel#2449 (Broadband Colors and Rotation Lightcurves of the Potentially Hazardous Asteroid 2009 UN3)

(003) Somers, J.M. et al. (2010) DPS 42, 1316. (abstract) (Optical Characterization Of Planetary Radar Targets, Low-deltaV, And Potentially Hazardous Asteroids: Results From 2009-2010)

(004) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)

(005) Hicks, M. et al. (2010) ATel#2449 (Broadband Colors and Rotation Lightcurves of the Potentially Hazardous Asteroid 2009 UN3)

(006) Betzler, A. et al. (2010) MPB 37, 95-97. (Photometric Observations of the Near-Earth Asteroids 1999 AP10 2000 TO64, 2000 UJ1, 2000 XK44, 2001 MZ7, 2003 QO104, 2005 RQ6, 2005 WJ56, and 2009 UN3)

(007) Hicks, M. et al. (2010) ATel#2449 (Broadband Colors and Rotation Lightcurves of the Potentially Hazardous Asteroid 2009 UN3)

(008) Betzler, A. et al. (2010) MPB 37, 95-97. (Photometric Observations of the Near-Earth Asteroids 1999 AP10 2000 TO64, 2000 UJ1, 2000 XK44, 2001 MZ7, 2003 QO104, 2005 RQ6, 2005 WJ56, and 2009 UN3)

(009) Hicks, M. et al. (2010) ATel#2449 (Broadband Colors and Rotation Lightcurves of the Potentially Hazardous Asteroid 2009 UN3)

(010) Polishook, D. (2012) MPB 39, 187-192. (LIGHTCURVES AND SPIN PERIODS OF NEAR-EARTH ASTEROIDS, THE WISE OBSERVATORY, 2005 - 2010) (1862,3361,5143,10115,40267,66251,68216,86829,105140,138893,141432,141495,152931,185851,2009UN3)

(011) JPL's NEO Radar Detection Program Webpage

(012) Slade, M.A. et al. (2010) DPS 42, 5701. (abstract) (First Results Of The New Goldstone Delay-Doppler Radar Chirp Imaging System) (2009UN3,2010AL30)


NEODyS Page of (484976) 2009 UN3