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6418 Hanamigahara (1993 XJ)
Classification: Main-belt Asteroid          SPK-ID: 2006418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064610530896722 8.0392e-09  
a 2.259864528568236 4.8681e-09 au
q 2.019276971016866 1.9824e-08 au
i 6.147744026015106 4.4128e-07 deg
node 229.3947098622068 5.2028e-06 deg
peri 179.4206519322304 8.9246e-06 deg
M 5.649852901206938 7.9464e-06 deg
tp 2459181.025932323196
(2020-Nov-27.52593232)
2.7388e-05 TDB
period 1240.857857051754
3.40
4.0095e-06
1.098e-08
d
yr
n .29012186847521 9.3745e-10 deg/d
Q 2.500452086119605 5.3864e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2876  
   data-arc span      18212 days (49.86 yr)  
   first obs. used      1971-05-14  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43269  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:52:42  

Additional Information
 Earth MOID = 1.02846 au 
 Jupiter MOID = 2.82364 au 
 T_jup = 3.606 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.05   n/a MPCxxxxx  
diameter diameter 6.386 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.3770 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.329   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6418 Hanamigahara           Discovered 1993 Dec. 8 by T. Kobayashi at Oizumi.
Hanamigahara is beautiful forest park in the northern part of Kurohone village, Gunma prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1993 XJ = 1986 TE12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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