( 1580) Betulia

(1950 KA )

Discovery Circumstances:

E. L. Johnson - Johannesburg

22 May 1950

(1)

Orbital Type:

AM

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

Taxonomic Type:

C

( 5)( 6)

Albedo:

0.077

( 7)( 8)( 9)(10)

Diameter:(km)

4.57

(11)(12)(13)(14)

H:(mag)

14.53

(15)

G:

0.13

(16)

U-B:(mag)

0.27

(17)

B-V:(mag)

0.66

(17)

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

6.1324

(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)

Quality:

4 !

(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)

Lightcurve Amplitude:(mag)

0.21-0.65

(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)

Spin Vector:

l=212,b=-5

(28)

Radar Observations:

Y

(29)(30)(31)

Spectral Observations:

Y

(32)

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

! - 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. 1268

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

( 3) Dave, R. et al. (2010) DPS 42, 1324. (abstract) (Thermal Emission Spectroscopy (5.2 To 38 Microns) And Analysis Of 10 Near-earth Asteroids) (1612,1580,433,2212,1685,1917,1566,3200,7092,1866)

( 4) 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)

( 5) Tholen, D.J. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1139-1150.

( 6) Rivkin, A.S. et al. (2005) Icarus 175, 175-180. (Constraining near-Earth object albedos using near-infrared spectroscopy) (1580,3103,29075,2001 ME1, 26760)

( 7) Harris, A.W. (DLR) et al. (2005) Icarus 179, 95-108. (The surface properties of small asteroids: Peculiar Betulia - A case study)

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

( 9) Lebofsky, L.A. et al. (1978) Icarus 35, 336-343. (Visual and radiometric photometry of 1580 Betulia)

(10) Rivkin, A.S. et al. (2005) Icarus 175, 175-180. (Constraining near-Earth object albedos using near-infrared spectroscopy) (1580,3103,29075,2001 ME1, 26760)

(11) Harris, A.W. (DLR) et al. (2005) Icarus 179, 95-108. (The surface properties of small asteroids: Peculiar Betulia - A case study)

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

(13) Lebofsky, L.A. et al. (1978) Icarus 35, 336-343. (Visual and radiometric photometry of 1580 Betulia)

(14) Rivkin, A.S. et al. (2005) Icarus 175, 175-180. (Constraining near-Earth object albedos using near-infrared spectroscopy) (1580,3103,29075,2001 ME1, 26760)

(15) Tedesco, E.F. (1976) Icarus 28, 21-28. (UBV lightcurves of asteroid 433 Eros)

(16) Tedesco, E.F. (1976) Icarus 28, 21-28. (UBV lightcurves of asteroid 433 Eros)

(17) Tedesco, E.F. et al. (1978) Icarus 35, 344-359. (1580 Betulia - An unusual asteroid with an extraordinary lightcurve)

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

(19) Wisniewski, W.Z. et al. (1995) LPSC XXVI, 1511-1512. (Photoelectric Observations of 125 Asteroids)

(20) Austin, R.D. (1976) Southern Stars 26, 228-230. (1580)

(21) Lagerkvist, C.-I. (1977) Icarus 32, 233-234. (A Photographic Lightcurve of the Amor Asteroid 1580 Betulia)

(22) Tedesco, E.F. et al. (1978) Icarus 35, 344-359. (1580 Betulia - An unusual asteroid with an extraordinary lightcurve)

(23) Drummond, J.D. & W.Z. Wisniewski (1990) Icarus 83, 349-359. (The rotational poles and shapes of 1580 Betulia and 3908 (1980PA) from one apparition)

(24) Erikson, A. et al. (1991) Astron. & Astrophys. Suppl 91, 259-264. (Physical studies of asteroids. XXIII - Photometric observations of the asteroids 6, 32, 196, 243,416, 532 and 1580)

(25) Wisniewski, W.Z. (1992) In Lunar and Planetary Inst., Asteroids, Comets, Meteors 1991 pp. 653-656. (The unusual lightcurve of 1990 TR) (also LCs of 1580,1917,3908)

(26) Harris, A.W. (DLR) (1998) Icarus 131, 291-301. (A Thermal Model for Near-Earth Asteroids)

(27) Kaasalainen, M. et al. (2004) Icarus 167, 178-196. (Photometry and models of eight near-Earth asteroids;1580,1627,1980,2100,3199,3908,4957,5587)

(28) Drummond, J.D. & W.Z. Wisniewski (1990) Icarus 83, 349-359. (The rotational poles and shapes of 1580 Betulia and 3908 (1980PA) from one apparition)

(29) Pettengill, G.H. et al. (1979) Icarus 40, 350-354. (Radar observations of asteroid 1580 Betulia)

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

(31) Magri, C. et al. (2007) Icarus 186, 152-177. (Radar observations and a physical model of asteroid 1580 Betulia)

(32) Rivkin, A.S. et al. (2005) Icarus 175, 175-180. (Constraining near-Earth object albedos using near-infrared spectroscopy) (1580,3103,29075,2001 ME1, 26760)

NEODyS Page of ( 1580) Betulia