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541716 (2011 WR61)
Classification: Main-belt Asteroid          SPK-ID: 2541716
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705620043345887 9.0694e-08  
a 3.109848871116204 4.9557e-08 au
q 2.579426814480966 2.9914e-07 au
i 15.67508821602494 1.0697e-05 deg
node 64.3151402491945 2.7623e-05 deg
peri 217.6968588401184 4.3995e-05 deg
M 355.0006996651629 3.4869e-05 deg
tp 2459228.317242742772
(2021-Jan-13.81724274)
0.00019406 TDB
period 2003.121780384951
5.48
4.7881e-05
1.311e-07
d
yr
n .1797194776299706 4.2959e-09 deg/d
Q 3.640270927751442 5.801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      8116 days (22.22 yr)  
   first obs. used      1998-04-03  
   last obs. used      2020-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:13  

Additional Information
 Earth MOID = 1.58003 au 
 Jupiter MOID = 1.53655 au 
 T_jup = 3.140 
[ 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 16.22   .29731 E2021B25 autocmod 2.8

541716 (2011 WR61)          Discovered 2009-Mar-26 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 WR61 = 2010 KO149 = 2014 FO13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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