( 3361) Orpheus

(1982 HR )

Discovery Circumstances:

C. Torres - Santiago-Cerro El Roble

24 Apr 1982

(1)

Orbital Type:

AP

(*)( 2)( 3)

Taxonomic Type:

V;Q

( 4)( 5)

Albedo:

0.357

( 6)( 7)( 8)

Diameter:(km)

0.348 km

( 9)(10)(11)

H:(mag)

19.30

(12)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

V-I:(mag)

-

-

B-R:(mag)

-

-

Rotation Period:(hrs)

3.51

(13)(14)

Quality:

1 !

(13)(14)

Lightcurve Amplitude:(mag)

0.25

(13)(14)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

(15)

Spectral Observations:

Y

(16)(17)(18)

IR Observations:

Y

(19)

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

(001) I.A.U.Circ. 3692

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

(003) 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)

(004) Wisniewski, W.Z. (1991) Icarus 90, 117-122. (Physical studies of small asteroids. I - Lightcurves and taxonomy of 10 asteroids)

(005) 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)

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

(007) 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)

(008) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.

(009) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 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) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.

(012) Wisniewski, W.Z. (1991) Icarus 90, 117-122. (Physical studies of small asteroids. I - Lightcurves and taxonomy of 10 asteroids)

(013) Polishook, D. (2012) MPB 39, 187-192. (LIGHTCURVES AND SPIN PERIODS OF NEAR-EARTH ASTEROIDS, THE WISE OBSERVATORY, 2005 - 2010) (1862,3361,5143,10115,40267,66251,68216,86829,105140,138893,141432,14149 5,152931,185851,2009UN3)

(014) Wisniewski, W.Z. (1991) Icarus 90, 117-122. (Physical studies of small asteroids. I - Lightcurves and taxonomy of 10 asteroids)

(015) JPL's NEO Radar Detection Program Webpage

(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) Burbine, T.H. et al. (2008) ACM2008, 8274. (DETERMINING THE PYROXENE MINERALOGIES OF NEAR-EARTH, MIDDLE-BELT, AND OUTER-BELT VESTOIDS)

(019) Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; et al. (2011) Astrophys. J. 741, A90. See also Grav 2012b and Masiero 2012.


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