(329770) 2004 JA

(2004 JA )

Discovery Circumstances:

LINEAR - Lincoln Laboratory ETS, New Mexico

1 May 2004

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

792 - 1772 m

($)

H:(mag)

17.90

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

52.5

( 2)( 3)

Quality:

2 !

( 2)( 3)

Lightcurve Amplitude:(mag)

0.4

( 2)( 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.

References

( 1) M.P.E.C. 2004-J15

(002) Petr Pravec's Ondrejov NEO Photometric Program Webpage "Prepublished Periods"

(003) R. Behrend Courbes des lumiere, Observatoire de Geneve website


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