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321658 (2010 CG12)
Classification: Main-belt Asteroid          SPK-ID: 2321658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967211389832947 4.1701e-08  
a 3.150978477642676 3.6662e-08 au
q 2.531114402608961 1.3992e-07 au
i 10.87822844120982 7.979e-06 deg
node 173.4183988066715 3.0611e-05 deg
peri 299.0781335639018 4.144e-05 deg
M 322.4289014079984 2.6886e-05 deg
tp 2459213.715108377436
(2020-Dec-30.21510838)
0.00015461 TDB
period 2042.991605047649
5.59
3.5655e-05
9.762e-08
d
yr
n .176212177823219 3.0753e-09 deg/d
Q 3.770842552676391 4.3874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1993-01-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 19:50:45  

Additional Information
 Earth MOID = 1.56852 au 
 Jupiter MOID = 1.46717 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457380.5 (2015-Dec-24.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961861164876508 4.2102e-08  
q 2.535170278014726 1.414e-07 au
tp 2457175.024330262188
(2015-Jun-01.52433026)
0.00013865 TDB
node 173.4350858852071 3.0586e-05 deg
peri 299.7666317369634 4.1375e-05 deg
i 10.87881768023397 7.9779e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1993-01-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 19:50:45  

Additional Information
 Jupiter MOID = 1.46717 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.772613456908178E-15 -5.82894684162417E-15 3.636073050833744E-13 -5.286145503483476E-15 1.347759305033174E-13 -5.285642304176714E-15
q -5.82894684162417E-15 1.99940147295261E-14 1.235138959677073E-13 1.634505495796646E-14 -1.62711013129496E-13 2.225909931520747E-14
tp 3.636073050833744E-13 1.235138959677073E-13 1.922320560944916E-8 1.2991288408933E-11 3.898976899521769E-9 4.157076412727277E-11
node -5.286145503483476E-15 1.634505495796646E-14 1.2991288408933E-11 9.354937066797361E-10 -9.157864947350446E-10 1.160085982153206E-10
peri 1.347759305033174E-13 -1.62711013129496E-13 3.898976899521769E-9 -9.157864947350446E-10 1.711859074272623E-9 -1.056901131535165E-10
i -5.285642304176714E-15 2.225909931520747E-14 4.157076412727277E-11 1.160085982153206E-10 -1.056901131535165E-10 6.364624691335543E-11

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 15.9   n/a MPO494703  
diameter diameter 4.723 km 0.504 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

321658 (2010 CG12)          Discovered 2010-Feb-12 by Lowe, A. at Mayhill
Reference: 20120308/Numbers.arcLast Updated: 2012-03-13

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Alternate Designations
 2010 CG12 = 2005 JY148 = 2008 UM68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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