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305381 (2008 CU29)
Classification: Main-belt Asteroid          SPK-ID: 2305381
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07448246222655895 1.6621e-07  
a 3.117743304441158 8.0689e-08 au
q 2.885526106536012 5.4422e-07 au
i 17.47618233508521 1.3331e-05 deg
node 325.4930149881044 3.2966e-05 deg
peri 345.6964043436415 9.4141e-05 deg
M 272.7384197142335 8.7481e-05 deg
tp 2459487.893275094124
(2021-Sep-30.39327509)
0.00048463 TDB
period 2010.754085122895
5.51
7.806e-05
2.137e-07
d
yr
n .1790373087706532 6.9504e-09 deg/d
Q 3.349960502346303 8.6699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      4909 days (13.44 yr)  
   first obs. used      2005-07-31  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57834  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:20:29  

Additional Information
 Earth MOID = 1.87474 au 
 Jupiter MOID = 1.98612 au 
 T_jup = 3.142 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456351.5 (2013-Feb-28.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07194291189365429 1.6646e-07  
q 2.896424324900028 5.4456e-07 au
tp 2455466.427676998163
(2010-Sep-26.92767700)
0.00055081 TDB
node 325.5261237523362 3.2989e-05 deg
peri 346.2273684313355 9.6422e-05 deg
i 17.4626518717309 1.3321e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      4909 days (13.44 yr)  
   first obs. used      2005-07-31  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57834  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:20:29  

Additional Information
 Jupiter MOID = 1.98612 au 
 T_jup = 3.142 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.770751871088E-14 -8.983457325983422E-14 5.714016312008504E-11 1.121344324889979E-13 8.451998507561608E-12 -9.789913425214402E-14
q -8.983457325983422E-14 2.965481100298268E-13 -1.977387295975391E-10 -3.588598347619385E-13 -2.922133584314414E-11 3.557270168033644E-13
tp 5.714016312008504E-11 -1.977387295975391E-10 3.033900645463064E-7 1.396110136127493E-10 4.980045792485371E-8 -4.978982513539801E-10
node 1.121344324889979E-13 -3.588598347619385E-13 1.396110136127493E-10 1.088296405581982E-9 -1.016801544405883E-9 1.300609675017773E-10
peri 8.451998507561608E-12 -2.922133584314414E-11 4.980045792485371E-8 -1.016801544405883E-9 9.297130471053684E-9 -2.035637572721564E-10
i -9.789913425214402E-14 3.557270168033644E-13 -4.978982513539801E-10 1.300609675017773E-10 -2.035637572721564E-10 1.774614073471071E-10

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 MPO455250  
diameter diameter 3.978 km 0.492 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305381 (2008 CU29)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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