( 5660) 1974 MA

(1974 MA = 1993 OL )

Discovery Circumstances:

C. T. Kowal - Palomar Mountain

26 Jun 1974

(1)

Orbital Type:

AP

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

Taxonomic Type:

Q

( 6)( 7)( 8)

Albedo:

mh

( 9)

Diameter:(km)

2.3 km

(10)

H:(mag)

15.40

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

17.5

(11)

Quality:

2 !

(11)

Lightcurve Amplitude:(mag)

0.3

(11)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

(12)

Spectral Observations:

Y

(13)(14)(15)(16)(17)(18)

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. 2683

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

(003) Hahn, G. & C.-I. Lagerkvist (1988) Celest. Mech. 43, 285-302. (Orbital evolution studies of planet-crossing asteroids)

(004) Hahn, G. & C.-I. Lagerkvist (1988) in "The Few Body Problem" (Ed.M.J. Valtonen), Kluwer Acad. Publ., Dordrecht, Netherlands, pp. 143-146. (Long-term orbital evolution studies of Aten-Apollo-Amor objects)

(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) 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.)

(007) 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.)

(008) 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)

(009) 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)

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

(012) JPL's NEO Radar Detection Program Webpage

(013) 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.)

(014) 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.)

(015) Reddy, V. et al. (2006) LPSC 37, 1746. (COMPOSITIONAL INVESTIGATION OF NEAR-EARTH ASTEROIDS 6456 Golombek, (5660) 1974 MA,(13553) 1992 JE.)

(016) Binzel, R.P. et al. (2006) LPSC 37, 1491. (The MIT-Hawaii-IRTF joint campaign for NEO spectral reconnaissance.)

(017) Binzel, R.P. et al. Webpage

(018) 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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