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212903 (2007 WZ38)
Classification: Main-belt Asteroid          SPK-ID: 2212903
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709405427173936 3.9819e-08  
a 3.162833815900772 2.8099e-08 au
q 2.622177286885769 1.2352e-07 au
i 5.498885574734127 5.9441e-06 deg
node 34.860686920984 5.5049e-05 deg
peri 65.58272763262933 5.8984e-05 deg
M 64.47956934334485 1.9204e-05 deg
tp 2458632.512883065680
(2019-May-29.01288307)
0.00010889 TDB
period 2054.532364987459
5.63
2.7379e-05
7.496e-08
d
yr
n .1752223552838494 2.335e-09 deg/d
Q 3.703490344915775 3.2902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      8982 days (24.59 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57783  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:50:46  

Additional Information
 Earth MOID = 1.64501 au 
 Jupiter MOID = 1.50892 au 
 T_jup = 3.174 
[ 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 MPO418140  

212903 (2007 WZ38)          Discovered 2007-Nov-19 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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