( 7335) 1989 JA

(1989 JA )

Discovery Circumstances:

E. F. Helin - Palomar Mountain

1 May 1989

(1)

Orbital Type:

AP

(*)( 2)

Taxonomic Type:

-

-

Albedo:

0.322

( 3)( 4)

Diameter:(km)

0.932 km

( 5)

H:(mag)

17.8

( 6)

G:

0.23

( 7)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

-

( 8)

Quality:

L

( 8)

Lightcurve Amplitude:(mag)

-

( 8)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

( 9)(10)(11)

Spectral Observations:

Y

(12)(13)(14)

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

L - as rotation quality code means lightcurve data obtained

References

( 1) I.A.U.Circ. 4776

(002) Yoshikawa, M. et al. (2000) Advan.Space Res. 25, 273-276. (Orbital Evolution of Two Near-Earth Asteroids: Nereus and 1989 ML)

(003) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(004) Binzel, R.P. et al. (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 255-271. (Physical Properties of NEOs)

(005) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(006) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(007) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(008) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(009) JPL's NEO Radar Detection Program Webpage

(010) Ostro, S.J. et al. (1991) Astron. J. 102, 1490-1502. (Asteroid radar astrometry)

(011) Mahapatra, P.R. et al. (2002) Planet. Space Sci. 50, 257-260. (Radar observations of asteroid 7335 (1989 JA))

(012) Lazzarin, M. et al. (1997) Astron. & Astrophys. 327, 388-391. (Compositional properties of Near-Earth Asteroids: spectroscopic comparison with Ordinary Chondrite Meteorites)

(013) Lazzarin, M. et al. (1997) B.A.A.S. 29, 966. (Spectroscopic Comparison Between Near-Earth Asteroids and Ordinary Chondrites Meteorites)

(014) Bus, S.J. & Binzel, R.P. (2002) Icarus 158,106-145. (Phase II of the Small Main-Belt Asteroid Spectrographic Survey: A Feature-Based Taxonomy.)


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