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385482 (2003 WK81)
Classification: Main-belt Asteroid          SPK-ID: 2385482
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2212161067289472 6.6192e-08  
a 2.801843550529969 2.0429e-08 au
q 2.182030628618119 1.9047e-07 au
i 8.319798714808654 6.06e-06 deg
node 263.1610693962861 4.28e-05 deg
peri 141.3579204623702 4.5002e-05 deg
M 283.1714675792815 1.3283e-05 deg
tp 2459762.081563331817
(2022-Jul-01.58156333)
6.5353e-05 TDB
period 1713.027161299295
4.69
1.8735e-05
5.129e-08
d
yr
n .2101542860108228 2.2984e-09 deg/d
Q 3.421656472441819 2.4948e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      2000-03-04  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5541  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:32:24  

Additional Information
 Earth MOID = 1.19841 au 
 Jupiter MOID = 2.00866 au 
 T_jup = 3.273 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.55   n/a E2021B25  

385482 (2003 WK81)          Discovered 2003-Nov-20 by LINEAR at Socorro
Reference: Last Updated: 2014-02-19

Alternate Designations
 2003 WK81 = 2012 RR40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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