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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1067287392364965 3.5179e-08  
a 2.26072615250544 7.0269e-09 au
q 2.019441700489559 7.8897e-08 au
i 6.150527183880363 3.9136e-06 deg
node 229.4271650150247 3.2996e-05 deg
peri 178.9447173292424 3.8121e-05 deg
M 192.114977034293 2.1293e-05 deg
tp 2459179.501672243639
(2020-Nov-26.00167224)
7.4922e-05 TDB
period 1241.567581941404
3.40
5.7886e-06
1.585e-08
d
yr
n .2899560243326249 1.3519e-09 deg/d
Q 2.502010604521321 7.7768e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2146  
   data-arc span      17659 days (48.35 yr)  
   first obs. used      1971-05-14  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:54:30  

Additional Information
 Earth MOID = 1.02892 au 
 Jupiter MOID = 2.82458 au 
 T_jup = 3.605 
[ 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-January); 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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