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JPL Small-Body Database Browser
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215388 (2002 CG81)
Classification: Main-belt Asteroid          SPK-ID: 2215388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03253864368928098 4.7294e-08  
a 3.120538172849233 3.2597e-08 au
q 3.019000093124093 1.5962e-07 au
i 10.96605821755114 5.7518e-06 deg
node 148.8337348169644 3.262e-05 deg
peri 121.8139079604209 0.00011227 deg
M 283.5797455565977 0.00010593 deg
tp 2459027.913912790759
(2020-Jun-27.41391279)
0.0005915 TDB
period 2013.458470210019
5.51
3.1548e-05
8.637e-08
d
yr
n .1787968340675283 2.8015e-09 deg/d
Q 3.222076252574374 3.3657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      6297 days (17.24 yr)  
   first obs. used      2002-02-07  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51906  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:21:58  

Additional Information
 Earth MOID = 2.01817 au 
 Jupiter MOID = 1.8668 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456676.5 (2014-Jan-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03103095593768783 4.7222e-08  
q 3.024216670002803 1.5932e-07 au
tp 2457015.557452017224
(2014-Dec-24.05745202)
0.00062723 TDB
node 148.8590067395329 3.2624e-05 deg
peri 122.2198024904783 0.00011747 deg
i 10.96449837646981 5.7513e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      6297 days (17.24 yr)  
   first obs. used      2002-02-07  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51906  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:21:58  

Additional Information
 Jupiter MOID = 1.8668 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.229947807545043E-15 -7.385747406583995E-15 -4.833589841301376E-12 -1.295062530980258E-15 -8.494441773527941E-13 -1.581666216028244E-15
q -7.385747406583995E-15 2.538221023147753E-14 1.126689839618899E-11 2.084390942819045E-16 1.932505576193088E-12 8.163657623432177E-15
tp -4.833589841301376E-12 1.126689839618899E-11 3.934179344248265E-7 4.021227737770338E-11 7.084018682284934E-8 1.786991513262906E-11
node -1.295062530980258E-15 2.084390942819045E-16 4.021227737770338E-11 1.064357199683318E-9 -1.037489992927495E-9 5.747342624450902E-11
peri -8.494441773527941E-13 1.932505576193088E-12 7.084018682284934E-8 -1.037489992927495E-9 1.379877586139755E-8 -5.326368520439532E-11
i -1.581666216028244E-15 8.163657623432177E-15 1.786991513262906E-11 5.747342624450902E-11 -5.326368520439532E-11 3.307743485278724E-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 15.3   n/a MPO433409  
diameter diameter 3.961 km 1.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215388 (2002 CG81)          Discovered 2002-Feb-07 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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