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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2216839798070872 7.4219e-08  
a 2.799771212039113 2.0386e-08 au
q 2.17910678720497 2.1148e-07 au
i 8.326360006168262 6.2683e-06 deg
node 263.1806617586868 4.483e-05 deg
peri 141.5247663068114 4.712e-05 deg
M 241.79259819036 1.3327e-05 deg
tp 2459762.355211236805
(2022-Jul-01.85521124)
6.6338e-05 TDB
period 1711.126993307745
4.68
1.8689e-05
5.117e-08
d
yr
n .2103876576127709 2.2978e-09 deg/d
Q 3.420435636873255 2.4905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7415 days (20.30 yr)  
   first obs. used      2000-03-04  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55177  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:32  

Additional Information
 Earth MOID = 1.19514 au 
 Jupiter MOID = 2.00804 au 
 T_jup = 3.274 
[ 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 16.55   n/a E2021B25  

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

[ show close-approach data ]
Alternate Designations
 2003 WK81 = 2012 RR40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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