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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694998940822849 4.3574e-08  
a 3.102797045713809 1.7156e-08 au
q 2.576873275106492 1.3769e-07 au
i 6.735051658259235 4.4066e-06 deg
node 110.6447081215454 4.8104e-05 deg
peri 309.6501351054246 5.1063e-05 deg
M 3.334784954900333 1.6255e-05 deg
tp 2458582.007577236395
(2019-Apr-08.50757724)
9.011e-05 TDB
period 1996.312291476293
5.47
1.6557e-05
4.533e-08
d
yr
n .180332506861327 1.4956e-09 deg/d
Q 3.628720816321126 2.0064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1419  
   data-arc span      14249 days (39.01 yr)  
   first obs. used      1980-11-29  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:05:06  

Additional Information
 Earth MOID = 1.59595 au 
 Jupiter MOID = 1.72042 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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