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10540 Hachigoroh (1991 VP4)
Classification: Main-belt Asteroid          SPK-ID: 2010540
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681177915797245 8.0476e-08  
a 3.106244853570116 3.3045e-08 AU
q 2.584029828682024 2.5531e-07 AU
i 6.737812421219254 7.8771e-06 deg
node 110.6950753253548 6.7387e-05 deg
peri 310.5179089733448 7.2256e-05 deg
M 37.78594623930259 2.2043e-05 deg
tp 2456590.615794225207
(2013-Oct-25.11579423)
0.00012279 JED
period 1999.640649473386
5.47
3.1909e-05
8.736e-08
d
yr
n .1800323473594156 2.8728e-09 deg/d
Q 3.628459878458209 3.86e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      12214 days (33.44 yr)  
   first obs. used      1980-11-29  
   last obs. used      2014-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53704  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:45:18  

Additional Information
 Earth MOID = 1.60241 AU 
 T_jup = 3.188 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO279626  

10540 Hachigoroh           Discovered 1991 Nov. 13 by S. Otomo at Kiyosato.
Hachigoroh Kikuchi (1926-1999) was the executive committee chief of the Haramura star party and was instrumental in getting it started. The name was suggested by S. Horiuchi.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ show close-approach data ]
Alternate Designations
 1991 VP4 = 1980 WZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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