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305424 (2008 CO138)
Classification: Main-belt Asteroid          SPK-ID: 2305424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04157224716245773 4.6489e-08  
a 3.085762917591492 4.262e-08 au
q 2.957480818896631 1.5112e-07 au
i 2.822568343701128 5.689e-06 deg
node 111.8326944635107 0.00011996 deg
peri 124.1650873826151 0.00015176 deg
M 22.75592911072494 8.9246e-05 deg
tp 2458875.348997773822
(2020-Jan-26.84899777)
0.00049105 TDB
period 1979.895462945075
5.42
4.1019e-05
1.123e-07
d
yr
n .1818277816872733 3.7671e-09 deg/d
Q 3.214045016286352 4.4392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6310 days (17.28 yr)  
   first obs. used      2002-01-13  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:23:53  

Additional Information
 Earth MOID = 1.94661 au 
 Jupiter MOID = 1.76808 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457129.5 (2015-Apr-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0398441399934162 4.6701e-08  
q 2.961707885573122 1.5143e-07 au
tp 2456889.578018667155
(2014-Aug-20.07801867)
0.00051665 TDB
node 111.8502847378297 0.00012002 deg
peri 122.8375397415962 0.00015418 deg
i 2.822099780426414 5.6875e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6310 days (17.28 yr)  
   first obs. used      2002-01-13  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:23:53  

Additional Information
 Jupiter MOID = 1.76808 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.181003197132954E-15 -6.798865291680815E-15 -3.031827957795317E-12 -4.501982485515806E-15 -5.587079956258529E-13 -1.567439304600909E-15
q -6.798865291680815E-15 2.29308119581322E-14 5.983247418521199E-12 2.251311827574227E-14 1.122790454870205E-12 6.017381342816194E-15
tp -3.031827957795317E-12 5.983247418521199E-12 2.66926559496018E-7 -1.621617320685586E-10 5.005247262253998E-8 1.661173421325495E-11
node -4.501982485515806E-15 2.251311827574227E-14 -1.621617320685586E-10 1.440507745504977E-8 -1.441714280858483E-8 1.161937710093423E-10
peri -5.587079956258529E-13 1.122790454870205E-12 5.005247262253998E-8 -1.441714280858483E-8 2.377156755681575E-8 -1.129163162176529E-10
i -1.567439304600909E-15 6.017381342816194E-15 1.661173421325495E-11 1.161937710093423E-10 -1.129163162176529E-10 3.234718248460931E-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 16.0   n/a MPO433968  

305424 (2008 CO138)          Discovered 2008-Feb-08 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 CO138 = 2002 AP194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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