1998 BY7

(1998 BY7 )

Discovery Circumstances:

Spacewatch - Steward Observatory, Kitt Peak-Spacewatch

22 Jan 1998

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

151 - 337 m

($)

H:(mag)

21.50

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

<1.3

( 2)

Quality:

2R !

( 2)

Lightcurve Amplitude:(mag)

-

( 2)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

( 3)

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.

R - as rotation quality code means Radar observations

References

( 1) M.P.E.C. 1998-B17

(002) L.Benner, JPL Radar website

(003) Ostro, S.J. et al. (1998) B.A.A.S 30, 1036. (Near-Earth-Asteroid Radar at Goldstone, Aug 1996 - Jun 1998) [7822(1991CS),4197(1982TA),4179Toutatis,7341(1991VK),7482(1994PC1),1997BR,1998BY7,6037(1988EG),1998KY26]


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