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5372 Bikki (1987 WS)
Classification: Main-belt Asteroid          SPK-ID: 2005372
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07477917963472189 4.3142e-08  
a 3.078633618468764 1.8718e-08 au
q 2.848415922083794 1.315e-07 au
i 12.211325519104 5.5715e-06 deg
node 19.38579462206603 1.7909e-05 deg
peri 292.9945769428989 4.187e-05 deg
M 22.3605168393951 3.8783e-05 deg
tp 2458477.949588185116
(2018-Dec-25.44958819)
0.00021266 TDB
period 1973.037947657369
5.40
1.7994e-05
4.926e-08
d
yr
n .182459744592057 1.664e-09 deg/d
Q 3.308851314853734 2.0118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1937  
   data-arc span      15771 days (43.18 yr)  
   first obs. used      1976-09-24  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48523  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:58:20  

Additional Information
 Earth MOID = 1.86266 au 
 Jupiter MOID = 1.96208 au 
 T_jup = 3.190 
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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 12.1   n/a MPO416770  
diameter diameter 9.694 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5372 Bikki (1987 WS)          Discovered 1987-Nov-29 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1987 WS = 1976 SY5 = 1976 UM1 = 1987 UP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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