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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685591929104416 7.4248e-08  
a 3.105150127848256 2.9335e-08 AU
q 2.581748528432399 2.3057e-07 AU
i 6.736322581499365 7.0307e-06 deg
node 110.6884040408077 6.2182e-05 deg
peri 310.2878304468362 6.6745e-05 deg
M 73.96450862513718 2.1505e-05 deg
tp 2456589.877062077106
(2013-Oct-24.37706208)
0.00011916 JED
period 1998.583650456415
5.47
2.8322e-05
7.754e-08
d
yr
n .1801275617949677 2.5526e-09 deg/d
Q 3.628551727264112 3.428e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      12498 days (34.22 yr)  
   first obs. used      1980-11-29  
   last obs. used      2015-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53212  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:22:52  

Additional Information
 Earth MOID = 1.60075 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 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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