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JPL Small-Body Database Browser
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442525 (2011 WR103)
Classification: Main-belt Asteroid          SPK-ID: 2442525
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09123766599291135 6.8184e-08  
a 3.02869758088706 5.3887e-08 au
q 2.752366282608548 2.0845e-07 au
i 8.16093449822343 7.4925e-06 deg
node 9.116859946180355 4.5136e-05 deg
peri 354.1810882112578 5.9764e-05 deg
M 268.3026551232849 4.3589e-05 deg
tp 2459490.884294746081
(2021-Oct-03.38429475)
0.00024054 TDB
period 1925.22854773975
5.27
5.1381e-05
1.407e-07
d
yr
n .1869907863264577 4.9905e-09 deg/d
Q 3.305028879165572 5.8804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      5025 days (13.76 yr)  
   first obs. used      2005-07-29  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52154  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:31  

Additional Information
 Earth MOID = 1.75025 au 
 Jupiter MOID = 2.14736 au 
 T_jup = 3.222 
[ 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 16.1   n/a MPO437721  

442525 (2011 WR103)          Discovered 2011-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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