(331471) 1984 QY1

(1984 QY1 = 2007 VB1 = 2011 NQ )

Discovery Circumstances:

E. F. Helin, P. Rose - Palomar Mountain

27 Aug 1984

(1)

Orbital Type:

AP

(*)( 2)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

2.3 - 5.1 km

($)

H:(mag)

15.60

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

45.5

( 3)

Quality:

1T? !

( 3)

Lightcurve Amplitude:(mag)

0.6

( 3)

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.

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

References

( 1) M.P.C.22197

(002) Milani, A. et al. (1989) Icarus 78, 212-269. (Dynamics of planet-crossing asteroids - Classes of orbital behavior - project Spaceguard)

(003) Warner B.D. & V. Benishek (2016) MPB 43, 285-286. (LIGHTCURVE ANALYSIS OF NEA (331471) 1984 QY1: A TUMBLING ASTEROID)


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