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312931 (2011 WY66)
Classification: Main-belt Asteroid          SPK-ID: 2312931
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3298831167327698 5.2414e-08  
a 2.745807857569998 4.2447e-08 au
q 1.840012203565478 1.5483e-07 au
i 5.551795521867298 7.6985e-06 deg
node 58.16356328671213 8.5419e-05 deg
peri 323.4417089944044 8.7141e-05 deg
M 337.9892052962674 2.3559e-05 deg
tp 2459102.110096649764
(2020-Sep-09.61009665)
0.00011074 TDB
period 1661.895233056341
4.55
3.8536e-05
1.055e-07
d
yr
n .2166201532078138 5.023e-09 deg/d
Q 3.651603511574518 5.6449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      6444 days (17.64 yr)  
   first obs. used      2002-12-07  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5076  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 20:09:40  

Additional Information
 Earth MOID = .846964 au 
 Jupiter MOID = 1.81313 au 
 T_jup = 3.260 
[ 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 16.6   n/a MPO476407  

312931 (2011 WY66)          Discovered 2008-Jan-16 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 WY66 = 2008 BE8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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