1991 XB

(1991 XB )

Discovery Circumstances:

C. S. Shoemaker - Palomar Mountain

1 Dec 1991

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

K;SX

( 2)( 3)

Albedo:

mh

( 4)

Diameter:(km)

0.9 km

( 5)

H:(mag)

18.80

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

-

-

Quality:

-

-

Lightcurve Amplitude:(mag)

-

-

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

Y

( 6)

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

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

References

( 1) I.A.U.Circ. 5399

(002) DeMeo, F. & R.P. Binzel (2008) Icarus 194, 436-449. (Comets in the near-Earth object population) ()

(003) Xu, S. et al. (1995) Icarus 115, 1-15. (Small main-belt asteroid spectroscopic survey: initial results)

(004) Binzel, R.P. et al. (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 255-271. (Physical Properties of NEOs)

(005) Binzel, R.P. et al. (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 255-271. (Physical Properties of NEOs)

(006) Xu, S. et al. (1995) Icarus 115, 1-15. (Small main-belt asteroid spectroscopic survey: initial results)


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