( 3102) Krok

(1981 QA )

Discovery Circumstances:

L. Brozek - Klet Observatory, Ceske Budejovice

21 Aug 1981

(1)

Orbital Type:

AM

(*)( 2)

Taxonomic Type:

QRS,S

( 3)( 4)( 5)( 6)( 7)( 8)( 9)

Albedo:

m

(10)

Diameter:(km)

1.6 km

(11)

H:(mag)

16.524

(12)(13)

G:

0.32

(14)(15)

U-B:(mag)

0.52

(16)

B-V:(mag)

0.84

(16)

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

151.8

(17)(18)(19)(20)

Quality:

4 !

(17)(18)(19)(20)

Lightcurve Amplitude:(mag)

1.3-1.6

(17)(18)(19)(20)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

Y

(21)(22)(23)(24)

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. 3629

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

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

(004) Lazzarin, M. et al. (2004) Icarus 169, 373-384. (Visible and near-infrared spectroscopic investigation of near-Earth objects at ESO: first results)

(005) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.)

(006) Whiteley, R.J. (2001) PhD. Thesis, University of Hawaii. (A Compositional and Dynamical Survey of the Near-Earth Asteroids)

(007) Lazzarin, M., Marchi,S. & Magrin, S. (2010) SINEO Database (Spectroscopic Investiation of Near-Earth Objects)

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

(009) 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)

(010) 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)

(011) 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)

(012) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

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

(014) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

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

(016) Harris, A.W. & J.W. Young (1983) Icarus 54, 59-109. (Asteroid rotation. IV)

(017) Pravec, P. et al. (2005) Icarus 173, 108-131. (Tumbling asteroids)

(018) Harris, A.W. & J.W. Young (1983) Icarus 54, 59-109. (Asteroid rotation. IV)

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

(020) Harris, A.W. et al. (1992) Icarus 95, 115-147. (Asteroid lightcurve observations from 1981)

(021) Lazzarin, M. et al. (2004) Icarus 169, 373-384. (Visible and near-infrared spectroscopic investigation of near-Earth objects at ESO: first results)

(022) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.)

(023) Lazzarin, M., Marchi,S. & Magrin, S. (2010) SINEO Database (Spectroscopic Investiation of Near-Earth Objects)

(024) deLeon, J. et al. (2010) Astron. Astrophys 517, A23. (Observations, compositional, and physical characterization of near-Earth and Mars-crosser asteroids from a spectroscopic survey)


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