( 4688) 1980 WF

(1980 WF )

Discovery Circumstances:

C. T. Kowal - Palomar Mountain

29 Nov 1980

(1)

Orbital Type:

AM

(*)( 2)

Taxonomic Type:

SQ;V;Q

( 3)( 4)( 5)

Albedo:

0.18

( 6)

Diameter:(km)

0.6 km

( 7)

H:(mag)

19.40

(#)

G:

0.15

(#)

U-B:(mag)

0.45

( 8)

B-V:(mag)

0.94

( 8)

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

-

-

Quality:

-

-

Lightcurve Amplitude:(mag)

-

-

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

-

-

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. 3549

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

(003) Chapman, C.R. et al. (1994) in "Hazards due to asteroids and comets", (T.Gehrels, ed.), Univ. Arizona Press, Tucson, USA, pp. 537-549.

(004) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.)

(005) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)

(006) Veeder, G.J. et al. (1989) Astron. J. 97, 1211-1219. (Radiometry of near-earth asteroids)

(007) Veeder, G.J. et al. (1989) Astron. J. 97, 1211-1219. (Radiometry of near-earth asteroids)

(008) Tedesco, E.F. & J.Gradie (1987) Astron. J. 93, 738-746. (Discovery of M class objects among the near-earth asteroid population)


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