( 52768) 1998 OR2

(1998 OR2 )

Discovery Circumstances:

NEAT - Haleakala-NEAT/GEODSS

24 Jul 1998

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

Xk;L

( 2)( 3)

Albedo:

-

-

Diameter:(km)

2.0 - 4.5 km

($)

H:(mag)

16.1

( 4)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

3.198;4.112

( 5)( 6)

Quality:

2 !

( 5)( 6)

Lightcurve Amplitude:(mag)

0.16-0.29

( 5)( 6)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

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. 1998-O19

(002) 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)

(003) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects)

(004) BetzlerS, A. & A.B. Novaes (2009) MPB 36, 145-147. (PHOTOMETRIC OBSERVATIONS OF 1998 OR2, 1999 AQ10, AND 2008 TC3)

(005) BetzlerS, A. & A.B. Novaes (2009) MPB 36, 145-147. (PHOTOMETRIC OBSERVATIONS OF 1998 OR2, 1999 AQ10, AND 2008 TC3)

(006) Koehn, B.W. et al. (2014) MPB 41, 286-300. (LOWELL OBSERVATORY NEAR-EARTH ASTEROID PHOTOMETRIC SURVEY (NEAPS) - 2009 JANUARY THROUGH 2009 JUNE) (433,1943,3554,5011,5604,5620,5693,8566,14402,16834,22753,35107,52768,68350,85867,138883,141052,143651,154244,161989,162385,163758,175706,194386,203217,207945,208023,212546,256412,2001FE90,2004LV3,2005BC,2005SG19,2008QT3,2008WL60,2009DE47,2009DO111,2009EP2,2009FD,2009JM2)


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