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90956 (1997 WB3)
Classification: Main-belt Asteroid          SPK-ID: 2090956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2376526942736844 5.2016e-08  
a 2.340651265088734 1.0516e-08 au
q 1.784389185585288 1.2173e-07 au
i 9.248284256098577 5.4079e-06 deg
node 81.30763613839625 4.5344e-05 deg
peri 325.6048770202293 4.7824e-05 deg
M 114.8197097929796 1.787e-05 deg
tp 2458583.325801647409
(2019-Apr-09.82580165)
6.3101e-05 TDB
period 1307.987206009427
3.58
8.8148e-06
2.413e-08
d
yr
n .2752320499359727 1.8549e-09 deg/d
Q 2.89691334459218 1.3015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      10704 days (29.31 yr)  
   first obs. used      1991-01-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:36:35  

Additional Information
 Earth MOID = .80336 au 
 Jupiter MOID = 2.50191 au 
 T_jup = 3.509 
[ 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 16.2   n/a MPO259874  

90956 (1997 WB3)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Alternate Designations
 1997 WB3 = 2002 FY27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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