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437202 (2012 WC8)
Classification: Main-belt Asteroid          SPK-ID: 2437202
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 .06453418690122421 6.1817e-08  
a 3.070594427027661 4.7221e-08 au
q 2.872436112376 1.9391e-07 au
i 3.309415967095282 7.0626e-06 deg
node 343.0956573573757 0.00012272 deg
peri 4.489573921706412 0.00013664 deg
M 215.0557388796409 6.1543e-05 deg
tp 2459791.780816247644
(2022-Jul-31.28081625)
0.00034431 TDB
period 1965.314746836429
5.38
4.5335e-05
1.241e-07
d
yr
n .1831767662556304 4.2255e-09 deg/d
Q 3.268752741679322 5.0268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      8996 days (24.63 yr)  
   first obs. used      1995-09-29  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:40:51  

Additional Information
 Earth MOID = 1.8654 au 
 Jupiter MOID = 2.04628 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457760.5 (2017-Jan-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06360208745290764 6.1795e-08  
q 2.877013608896553 1.9373e-07 au
tp 2457827.988103665118
(2017-Mar-15.48810366)
0.00033036 TDB
node 343.1243579946687 0.00012272 deg
peri 4.933370076859121 0.00013704 deg
i 3.308870003349202 7.0612e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      8996 days (24.63 yr)  
   first obs. used      1995-09-29  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:40:51  

Additional Information
 Jupiter MOID = 2.04628 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.81859535914948E-15 -1.16560894154116E-14 -1.060636005833338E-13 -6.602164367843177E-15 -4.422989001522981E-14 -1.080934652502064E-15
q -1.16560894154116E-14 3.753305012461258E-14 5.642734314383902E-12 3.299235547037677E-14 1.081356565702443E-12 4.511590110615985E-15
tp -1.060636005833338E-13 5.642734314383902E-12 1.09140150200885E-7 1.1947514466492E-10 2.02176581228827E-8 -1.177349237821419E-12
node -6.602164367843177E-15 3.299235547037677E-14 1.1947514466492E-10 1.506066278248596E-8 -1.501219242469258E-8 1.219765670786225E-11
peri -4.422989001522981E-14 1.081356565702443E-12 2.02176581228827E-8 -1.501219242469258E-8 1.8779837291758E-8 -1.242410277551618E-11
i -1.080934652502064E-15 4.511590110615985E-15 -1.177349237821419E-12 1.219765670786225E-11 -1.242410277551618E-11 4.986057872048098E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO437695  

437202 (2012 WC8)          Discovered 2006-Sep-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

Alternate Designations
 2012 WC8 = 2011 SF51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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