(171839) 2001 JM1

(2001 JM1 )

Discovery Circumstances:

NEAT - Haleakala-AMOS

12 May 2001

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

S

( 2)

Albedo:

-

-

Diameter:(km)

456 - 1019 m

($)

H:(mag)

19.10

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

-

-

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

5.7516

( 3)

Quality:

3 !

( 3)

Lightcurve Amplitude:(mag)

0.15

( 3)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

Y

( 4)

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

$ - diameter range derived from H and assumed albedo for C and S type - 0.04 and 0.20 respectively

# - 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) M.P.E.C. 2001-J30

(002) 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.)

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

(004) 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.)


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