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359904 (2011 WP81)
Classification: Main-belt Asteroid          SPK-ID: 2359904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03646956257840017 5.0303e-08  
a 2.679187511267779 3.4207e-08 au
q 2.58147871466633 1.4026e-07 au
i 1.54005663226057 7.5181e-06 deg
node 201.3372170680843 0.00020535 deg
peri 272.8375173026457 0.00024372 deg
M 290.4779014959497 0.0001351 deg
tp 2459309.831013116705
(2021-Apr-05.33101312)
0.00060488 TDB
period 1601.780831105465
4.39
3.0676e-05
8.399e-08
d
yr
n .224749849048666 4.3043e-09 deg/d
Q 2.776896307869227 3.5454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7129 days (19.52 yr)  
   first obs. used      2000-03-27  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55594  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:18:30  

Additional Information
 Earth MOID = 1.59845 au 
 Jupiter MOID = 2.24427 au 
 T_jup = 3.376 
[ 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 16.9   n/a MPO450335  

359904 (2011 WP81)          Discovered 2007-Nov-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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