( 85867) 1999 BY9

(1999 BY9 )

Discovery Circumstances:

K. Korlevic - Visnjan

23 Jan 1999

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

722 - 1616 m

($)

H:(mag)

18.10

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

~25.

( 2)

Quality:

T

( 2)

Lightcurve Amplitude:(mag)

0.2-0.6

( 2)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

Y

( 3)( 4)

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

T - in rotation quality code means Tumbling, non-principal axis rotation (NPAR)

References

( 1) M.P.E.C. 1999-C11

(002) 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)

(003) deLeon, J. et al. (2006) Advanc. Space Res. 37, 178-183. (Spectral analysis and mineralogical characterization of 11 olivine-pyroxene rich NEAs) (1627,1864,3122,25143,65803,1999BY9,1999TF211,2000VJ61,2000XH44,2003HM16,2003YG118)

(004) deLeon, J. et al. (2010) Astron. Astrophys 517, A23. (Observations, compositional, and physical characterization of near-Earth and Mars-crosser asteroids from a spectroscopic survey)


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