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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1692428058758883 7.0232e-08  
a 3.101019941734829 2.5758e-08 au
q 2.576194625718543 2.1619e-07 au
i 6.735575180903396 5.8941e-06 deg
node 110.6548452187897 5.9216e-05 deg
peri 309.869470763272 6.2792e-05 deg
M 182.6516622442869 2.0532e-05 deg
tp 2458583.107075350602
(2019-Apr-09.60707535)
0.00011812 JED
period 1994.597477499174
5.46
2.4851e-05
6.804e-08
d
yr
n .1804875440088132 2.2487e-09 deg/d
Q 3.625845257751116 3.0117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      12922 days (35.38 yr)  
   first obs. used      1980-11-29  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .512  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:08:56  

Additional Information
 Earth MOID = 1.59397 au 
 Jupiter MOID = 1.72666 au 
 T_jup = 3.189 
[ 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 MPO319217  

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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