( 1685) Toro

(1948 OA )

Discovery Circumstances:

C. A. Wirtanen - Lick Observatory, Mount Hamilton

17 Jul 1948

(1)

Orbital Type:

AP

(*)( 2)( 3)( 4)( 5)( 6)

Taxonomic Type:

S,Sq

( 7)( 8)( 9)(10)(11)(12)(13)

Albedo:

0.26

(14)(15)(16)(17)

Diameter:(km)

3.75 km

(18)(19)(20)(21)

H:(mag)

13.96

(22)

G:

0.03

(23)

U-B:(mag)

0.47

(24)

B-V:(mag)

0.88

(24)

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

10.196

(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)

Quality:

4 !

(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)

Lightcurve Amplitude:(mag)

0.60-1.40

(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)

Spin Vector:

l=200,b=+55

(36)

Sense of Rotation:

pro

(37)

Radar Observations:

Y

(38)(39)(40)(41)

Spectral Observations:

Y

(42)(43)

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. 1165

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

(003) Janiczek, P.M. et al. (1972) Astron. J. 77, 764-773. (Resonances and Encounters in the Inner Solar System)

(004) 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)

(005) 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)

(006) Ness, R.G. & J.P. Emery (2014) LPSC 45, 1430. (Thermal Inertia Estimates of Four Near-Earth Asteroids from Spitzer Space Telescope Spectral Observations)(1580,1620,1685,1862)

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

(008) 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.)

(009) Binzel, R.P. et al. (2004) Planetary & Space Science 52, 291-296. (Spetral observations for near-Earth objects..(1685,1943,4660))

(010) Stuart, S.S. & R.P. Binzel (2004) Icarus 170, 295-311. (Bias-corrected population, size distribution, and impact hazard for near-Earth objects)

(011) Fornasier, S. et al. (2006) Astron. Astrophys. 455, 371-377. (Polarimetric survey of asteroids with the Asiago telescope) (..1627,3200,..)

(012) Thomas, C.A. et al. (2014) Icarus 228, 217-246. (Physical characterization of Warm Spitzer-observed near-Earth objects)

(013) 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)

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

(015) Masiero, J.R. et al. (2012) Astrophys. J. 749, 104. (A REVISED ASTEROID POLARIZATION-ALBEDO RELATIONSHIP USING WISE/NEOWISE DATA) (887,1036,1627,1685)

(016) Thomas, C.A. et al. (2011) Astron. J. 142, 85. (ExploreNEOs. V. AVERAGE ALBEDO BY TAXONOMIC COMPLEX IN THE NEAR-EARTH ASTEROID POPULATION) (new albedos data for 118 NEOs)

(017) Kiselev, N.N. et al. (1990) Kinemat. Fis. Nebesn. Tel. 6, p. 77-82. (Polarimetry of the asteroid 1685 Toro)

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

(019) Ostro, S.J. et al. (1983) Astron. J. 88, 565-576. (Radar observations of asteroid 1685 Toro)

(020) Goldstein, R.M. et al. (1973) Astron. J. 78, 508-509. (Minor planets and related objects. XII Radar observations of (1685) Toro)

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

(022) Tedesco, E.F. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1090-1138.

(023) Tedesco, E.F. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1090-1138.

(024) Tedesco, E.F. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1090-1138.

(025) Dunlap, J.L. et al. (1973) Astron. J. 78, 491-501. (Minor planets and related objects. IX. Photometry and polarimetry of (1685) Toro)

(026) Hoffmann, M. & E.H. Geyer (1990) Acta Astronomica 40, 389-396. (Photometric observations of three near-earth asteroids) (1627) (3908) (1685)

(027) Kiselev, N.N. et al. (1990) Kinemat. Fis. Nebesn. Tel. 6, p. 77-82. (Polarimetry of the asteroid 1685 Toro)

(028) De Angelis, G. (1995) Planet. Space Sci. 43, 649-682. (Asteroid spin, pole and shape determinations) (..,1566,1686,1862,..)

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

(030) Krugly, Yu. N. et al. (2006) IAU Symp. 236, 385-390. (Kharkiv study of near-Earth asteroids) (1036,1627,1685,1862,1980,3103,3200,4179,6611,8567,11405,13553,23187,54509,66251,100085,1999LF6,2004XP14,2005AB,2006CV69,2006BQ6)

(031) Higgins D. (2008) MPB 35, 30-32. (ASTERIOD LIGHTCURVE ANALYSIS AT HUNTERS HILL OBSERVATORY AND COLLABORATING STATIONS: APRIL 2007 - JUNE 2007) (..,1685,1862,..)

(032) Higgins, D. (2011) MPB 38, 41-46. (PERIOD DETERMINATION OF ASTEROID TARGETS OBSERVED AT HUNTERS HILL OBSERVATORY: MAY 2009 - SEPTEMBER 2010) (..,1685,..,66146,)

(033) Oey, J. (2011) MPB 38, 221-223. (LIGHTCURVE ANALYSIS OF ASTEROIDS FROM LEURA AND KINGSGROVE OBSERVATORY FOR THE SECOND HALF OF 2009 AND 2010) (..,1685,..,2001FE90)

(034) Warner, B,D. (2013) MPB 40, 26-29. (ASTEROID LIGHTCURVE ANALYSIS AT THE PALMER DIVIDE OBSERVATORY: 2012 JUNE - SEPTEMBER) (..,1685,..)

(035) Warner, B.D. (2016) MPB 43, 240-250. (NEAR-EARTH ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2016 JANUARY-APRIL)(38NEAs)

(036) Dunlap, J.L. et al. (1973) Astron. J. 78, 491-501. (Minor planets and related objects. IX. Photometry and polarimetry of (1685) Toro)

(037) Dunlap, J.L. et al. (1973) Astron. J. 78, 491-501. (Minor planets and related objects. IX. Photometry and polarimetry of (1685) Toro)

(038) Ostro, S.J. et al. (1983) Astron. J. 88, 565-576. (Radar observations of asteroid 1685 Toro)

(039) Goldstein, R.M. et al. (1973) Astron. J. 78, 508-509. (Minor planets and related objects. XII Radar observations of (1685) Toro)

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

(041) Goldstein, R. M., (1968) Science 162, 903-904. (Radar observations of Icarus.)

(042) Binzel, R.P. et al. (2004) Planetary & Space Science 52, 291-296. (Spetral observations for near-Earth objects..(1685,1943,4660))

(043) Fevig. R.A. and U. Fink (2007) Icarus 188, 175-188. (Spectral observations of 19 weathered and 23 fresh NEAs and their correlations with orbital parameters)(433,1036,1627,1685,1862,1866,1943,1980,3103,3122,3199,3671,4183,4341,4954,5587,5751,5836,6037,7358,7482,7753,7822,7977,8201,10563,11066,13651,13651,19356,20236,20255,35107,85490,J97GD32,J97UH9,J97US9,J98HE3,J98HT31,J98ME3,J98MS2,K04LC2)


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