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123397 (2000 WB78)
Classification: Main-belt Asteroid          SPK-ID: 2123397
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 .22898025457901 8.5043e-08  
a 2.584469820790336 2.3826e-08 au
q 1.992677263273996 2.3398e-07 au
i 3.930276558859639 6.3762e-06 deg
node 302.8210581645187 6.8325e-05 deg
peri 24.20888838118258 6.8924e-05 deg
M 318.5091371704139 1.0219e-05 deg
tp 2459175.406355396734
(2020-Nov-21.90635540)
4.4643e-05 TDB
period 1517.594083339339
4.15
2.0986e-05
5.746e-08
d
yr
n .2372175827200446 3.2803e-09 deg/d
Q 3.176262378306675 2.9281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      9178 days (25.13 yr)  
   first obs. used      1994-03-07  
   last obs. used      2019-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5411  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:13:55  

Additional Information
 Earth MOID = .981804 au 
 Jupiter MOID = 2.17708 au 
 T_jup = 3.382 
[ 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 15.7   n/a MPO432728  

123397 (2000 WB78)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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