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300973 (2008 EW50)
Classification: Main-belt Asteroid          SPK-ID: 2300973
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710533581093177 5.9279e-08  
a 3.121815734499191 3.4593e-08 au
q 2.587818669714599 1.9334e-07 au
i 11.83114328723712 7.8421e-06 deg
node 188.8720248220345 2.811e-05 deg
peri 321.4368532250955 3.9365e-05 deg
M 94.48472780512783 2.2587e-05 deg
tp 2458471.728011877449
(2018-Dec-19.22801188)
0.00012793 TDB
period 2014.695074496341
5.52
3.3487e-05
9.168e-08
d
yr
n .1786870899508192 2.9701e-09 deg/d
Q 3.655812799283784 4.051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      5843 days (16.00 yr)  
   first obs. used      2003-05-02  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:22:50  

Additional Information
 Earth MOID = 1.60943 au 
 Jupiter MOID = 1.40835 au 
 T_jup = 3.161 
[ 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 15.8   n/a MPO437341  
diameter diameter 5.301 km 1.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

300973 (2008 EW50)          Discovered 2008-Mar-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

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