(450894) 2008 BT18

(2008 BT18 )

Discovery Circumstances:

LINEAR - Lincoln Laboratory ETS, New Mexico

31 Jan 2008

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

V

( 2)

Albedo:

-

-

Diameter:(km)

659 - 1473 m

($)

H:(mag)

18.30

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

2.726

( 3)

Quality:

2B !

( 3)

Lightcurve Amplitude:(mag)

0.045

( 3)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

( 4)( 5)

Spectral Observations:

Y

( 6)

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.

B - in rotation quality code means Binary asteroid

References

( 1) M.P.E.C. 2008-C03

(002) Reddy, V. et al. (2008) DPS 40, 2507. (Compositional Investigation of Binary Potentially-Hazardous Asteroid 2008 BT18: A Basaltic Achondrite)

(003) Betzler, A.S. & Novaes, A.B. (2009) MPB 36, 94-96. (OBSERVATIONS OF V-TYPE BINARY NEAR-EARTH ASTEROIDS 2006 VV2 AND 2008 BT18)

(004) JPL's NEO Radar Detection Program Webpage

(005) Benner, L.A.M. et al. (2008) CBET 1450. (2008 BT_18) (Radar detection of binary system)

(006) Reddy, V. et al. (2008) DPS 40, 2507. (Compositional Investigation of Binary Potentially-Hazardous Asteroid 2008 BT18: A Basaltic Achondrite)


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