( 68548) 2001 XR31

(2001 XR31 )

Discovery Circumstances:

LINEAR - Lincoln Laboratory ETS, New Mexico

13 Dec 2001

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

V,R?

( 2)( 3)

Albedo:

0.305

( 4)

Diameter:(km)

1.21 km

( 5)

H:(mag)

16.50

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

-

-

Quality:

-

-

Lightcurve Amplitude:(mag)

-

-

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

Y

( 6)( 7)

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

References

( 1) M.P.E.C. 2001-X69

(002) Marchi, S. et al. (2004) Astron. & Astrophys. 420, L5-L8. (An R-type asteroid within the near-Earth objects? - 2001 XR31)

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

(004) Nugent, C.R. et al. (2015) Astrophys. J. 814_117 (13pp) (NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos)(201 NEOs)

(005) Nugent, C.R. et al. (2015) Astrophys. J. 814_117 (13pp) (NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos)(201 NEOs)

(006) Marchi, S. et al. (2004) Astron. & Astrophys. 420, L5-L8. (An R-type asteroid within the near-Earth objects? - 2001 XR31)

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


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