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390618 (2001 WU2)
Classification: Main-belt Asteroid          SPK-ID: 2390618
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 .2000945354078758 5.3448e-08  
a 3.109577439174166 4.8395e-08 au
q 2.487367986167799 1.4939e-07 au
i 15.49499100674053 1.0456e-05 deg
node 221.8893075532002 2.0092e-05 deg
peri 253.9317940148464 3.6049e-05 deg
M 81.42793744080862 3.2804e-05 deg
tp 2458547.475775628895
(2019-Mar-04.97577563)
0.00017878 TDB
period 2002.859533217944
5.48
4.6756e-05
1.28e-07
d
yr
n .1797430094468967 4.1961e-09 deg/d
Q 3.731786892180533 5.8078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      6791 days (18.59 yr)  
   first obs. used      2001-10-21  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55469  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:39:35  

Additional Information
 Earth MOID = 1.55611 au 
 Jupiter MOID = 1.8147 au 
 T_jup = 3.133 
[ 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 15.9   n/a MPO427947  

390618 (2001 WU2)          Discovered 2001-Oct-21 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2001 WU2 = 2012 TZ66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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