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442511 (2011 WF61)
Classification: Main-belt Asteroid          SPK-ID: 2442511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05576279759014934 5.0979e-08  
a 2.687372518456489 3.4562e-08 au
q 2.53751710866047 1.5372e-07 au
i 3.078419338954911 5.193e-06 deg
node 90.03159447358232 0.00013369 deg
peri 336.0661955926835 0.00016722 deg
M 338.0335162936315 0.00010126 deg
tp 2459098.685708034295
(2020-Sep-06.18570803)
0.00045376 TDB
period 1609.126675203764
4.41
3.1042e-05
8.499e-08
d
yr
n .223723840731441 4.3159e-09 deg/d
Q 2.837227928252508 3.6489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      9004 days (24.65 yr)  
   first obs. used      1995-02-02  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60266  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:55  

Additional Information
 Earth MOID = 1.55154 au 
 Jupiter MOID = 2.3222 au 
 T_jup = 3.369 
[ 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 17.1   n/a MPO456095  

442511 (2011 WF61)          Discovered 2007-Dec-14 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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