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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1063909114852766 3.5083e-08  
a 2.259797525383202 7.0667e-09 au
q 2.01937560688551 7.8596e-08 au
i 6.147821092110897 3.9049e-06 deg
node 229.3946971156299 3.3014e-05 deg
peri 179.3741105525091 3.8167e-05 deg
M 307.6590817977434 2.1645e-05 deg
tp 2459180.902086525649
(2020-Nov-27.40208653)
7.5064e-05 TDB
period 1240.802671788696
3.40
5.8202e-06
1.593e-08
d
yr
n .2901347717772377 1.3609e-09 deg/d
Q 2.500219443880893 7.8185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2162  
   data-arc span      17696 days (48.45 yr)  
   first obs. used      1971-05-14  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:02:36  

Additional Information
 Earth MOID = 1.02944 au 
 Jupiter MOID = 2.82378 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 13.0   n/a MPO384812  
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. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
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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