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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695649470581268 3.8209e-08  
a 3.102297172379433 1.5132e-08 au
q 2.576256316586338 1.1745e-07 au
i 6.735503555294689 4.3715e-06 deg
node 110.6444973871664 3.8627e-05 deg
peri 309.5488972318617 4.2075e-05 deg
M 75.55178395520197 1.513e-05 deg
tp 2458581.643031549557
(2019-Apr-08.14303155)
8.3748e-05 TDB
period 1995.82988975573
5.46
1.4603e-05
3.998e-08
d
yr
n .1803760940989116 1.3197e-09 deg/d
Q 3.628338028172528 1.7698e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1661  
   data-arc span      14395 days (39.41 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:22:19  

Additional Information
 Earth MOID = 1.59566 au 
 Jupiter MOID = 1.72158 au 
 T_jup = 3.189 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3   n/a MPO502250  
diameter diameter 11.112 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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