( 4769) Castalia

(1989 PB )

Discovery Circumstances:

E. F. Helin - Palomar Mountain

9 Aug 1989

(1)

Orbital Type:

AP

(*)( 2)( 3)( 4)

Taxonomic Type:

-

-

Albedo:

m

( 5)

Diameter:(km)

1.4 km

( 6)

H:(mag)

16.9

( 7)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

4.095

( 8)( 9)(10)(11)

Quality:

4 !

( 8)( 9)(10)(11)

Lightcurve Amplitude:(mag)

0.64-1.0

( 8)( 9)(10)(11)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

(12)(13)(14)(15)(16)

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

! - 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) I.A.U.Circ. 4831

(002) Nugent, C.R. et al. (2012) Astron. J. 144, 60. (DETECTION OF SEMIMAJOR AXIS DRIFTS IN 54 NEAR-EARTH ASTEROIDS: NEW MEASUREMENTS OF THE YARKOVSKY EFFECT) (54 NEAs)

(003) Marshall, S.E. et al. (2015) LPSC 46, 2995. (THERMAL MODELING OF THREE NON-SPHERICAL NEAR-EARTH ASTEROIDS)(4769,8567,162421)

(004) Sebera, J. et al. (2016) Icarus 272, 70-79. (Spheroidal models of the exterior gravitational field of Asteroids Bennu and Castalia)

(005) 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)

(006) 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)

(007) Hudson, R.S. et al. (1997) Icarus 130, 165-176. (Constraints on Spin State and Hapke Parameters of Asteroid 4769 Castalia Using Lightcurves and a Radar-Derived Shape Model)

(008) Hudson, R.S. et al. (1997) Icarus 130, 165-176. (Constraints on Spin State and Hapke Parameters of Asteroid 4769 Castalia Using Lightcurves and a Radar-Derived Shape Model)

(009) Ostro, S.J. et al. (1990) Science 248, 1523-1528. (Radar images of asteroid 1989 PB)

(010) Hudson R.S. & S.J. Ostro (1994) Science 263, 940-943. (Shape of Asteroid 4769 Castalia (1989 PB) from Inversion of Radar Images)

(011) Erikson, A. et al. (2000) Icarus 147, 487-497. (The Near-Earth Objects Follow-Up Program III: 32 Lightcurves for 12 Objects from 1992 to 1995) (433,1917,2368,3753,4769,4953,6491, 1995 EK1, 1995 FJ; 5738,7467,1995 LH)

(012) Hudson, R.S. & S.J. Ostro (1994) Science 263, 940-943. (Shape of Asteroid 4769 Castalia (1989 PB) from Inversion of Radar Images)

(013) Hudson, R.S. et al. (1997) Icarus 130, 165-176. (Constraints on Spin State and Hapke Parameters of Asteroid 4769 Castalia Using Lightcurves and a Radar-Derived Shape Model)

(014) Ostro, S.J. et al. (1990) Science 248, 1523-1528. (Radar images of asteroid 1989 PB)

(015) Hudson R.S. & S.J. Ostro (1994) Science 263, 940-943. (Shape of Asteroid 4769 Castalia (1989 PB) from Inversion of Radar Images)

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


NEODyS Page of ( 4769) Castalia