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JPL Small-Body Database Browser
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379312 (2009 WY4)
Classification: Main-belt Asteroid          SPK-ID: 2379312
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872334132739039 6.9233e-08  
a 2.639363351538756 3.2559e-08 au
q 2.145186342360104 1.8765e-07 au
i 7.437564548918344 1.0328e-05 deg
node 36.81057669208305 5.9777e-05 deg
peri 270.6761728918668 6.5536e-05 deg
M 159.7409818711346 2.6401e-05 deg
tp 2457905.538015312690
(2017-Jun-01.03801531)
0.00011464 TDB
period 1566.199929140668
4.29
2.898e-05
7.934e-08
d
yr
n .2298557120977028 4.2532e-09 deg/d
Q 3.133540360717408 3.8655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      7753 days (21.23 yr)  
   first obs. used      1996-10-15  
   last obs. used      2018-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:41:58  

Additional Information
 Earth MOID = 1.1457 au 
 Jupiter MOID = 2.17239 au 
 T_jup = 3.359 
[ 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 MPO434347  

379312 (2009 WY4)          Discovered 2009-Nov-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

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