(136923) 1998 JH2

(1998 JH2 = 1986 VH9 )

Discovery Circumstances:

Spacewatch - Steward Observatory, Kitt Peak-Spacewatch

1 May 1998

(1)

Orbital Type:

AM

(*)

Taxonomic Type:

S;Q,Sq

( 2)( 3)

Albedo:

-

-

Diameter:(km)

1.7 - 3.9 km

($)

H:(mag)

16.20

(#)

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

( 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

References

( 1) M.P.E.C. 1998-J09

(002) Kuroda, D. et al. (2014) PASJ 66, 51. (Visible-wavelength spectroscopy of subkilometer-sized near-Earth asteroids with a low delta-v) (89136,136923,141018,163000,214869,253062,311925,363305,2009SC15,2009SQ104,2011BT15)

(003) 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)

(004) Kuroda, D. et al. (2014) PASJ 66, 51. (Visible-wavelength spectroscopy of subkilometer-sized near-Earth asteroids with a low delta-v) (89136,136923,141018,163000,214869,253062,311925,363305,2009SC15,2009SQ104,2011BT15)

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