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437217 (2012 WZ22)
Classification: Main-belt Asteroid          SPK-ID: 2437217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822208679239115 9.4524e-08  
a 2.706317575355119 4.1734e-08 au
q 2.213170037896173 2.6535e-07 au
i 3.104979589660492 8.2036e-06 deg
node 295.1260058082541 0.00019268 deg
peri 69.46746704323476 0.00019426 deg
M 291.7807859010965 3.292e-05 deg
tp 2459308.656104159362
(2021-Apr-04.15610416)
0.00015333 TDB
period 1626.17231761914
4.45
3.7616e-05
1.03e-07
d
yr
n .2213787530998386 5.1208e-09 deg/d
Q 3.199465112814064 4.9339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      7029 days (19.24 yr)  
   first obs. used      2000-01-08  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58898  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:09:07  

Additional Information
 Earth MOID = 1.21344 au 
 Jupiter MOID = 2.27752 au 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO472425  

437217 (2012 WZ22)          Discovered 2008-Dec-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

Alternate Designations
 2012 WZ22 = 2012 UC176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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