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312305 (2008 CM54)
Classification: Main-belt Asteroid          SPK-ID: 2312305
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008056929538362 9.7832e-08  
a 2.566548732291514 6.162e-08 au
q 2.051171135603927 2.5133e-07 au
i 5.744268763435013 1.0567e-05 deg
node 181.2752444795609 0.00010726 deg
peri 57.97427382562408 0.00011551 deg
M 277.4369545265852 7.21e-05 deg
tp 2459344.933910641914
(2021-May-10.43391064)
0.00031085 TDB
period 1501.836652464759
4.11
5.4086e-05
1.481e-07
d
yr
n .2397064949834466 8.6327e-09 deg/d
Q 3.081926328979101 7.3994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      5355 days (14.66 yr)  
   first obs. used      2004-02-19  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7194  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:40:37  

Additional Information
 Earth MOID = 1.04631 au 
 Jupiter MOID = 1.94027 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456436.5 (2013-May-24.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2014302904262116 9.755e-08  
q 2.049395393641178 2.5047e-07 au
tp 2456342.502885543341
(2013-Feb-19.00288554)
0.00023151 TDB
node 181.3115035406648 0.0001073 deg
peri 58.11334861011091 0.00011556 deg
i 5.742937971847478 1.0566e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      5355 days (14.66 yr)  
   first obs. used      2004-02-19  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7194  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:40:37  

Additional Information
 Jupiter MOID = 1.94027 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.515989849316868E-15 -2.397104904123773E-14 3.881479567043736E-13 -9.936922857372322E-14 1.609455827273029E-13 1.016538430648501E-14
q -2.397104904123773E-14 6.273454009880491E-14 6.112570054609037E-12 2.968417481898146E-13 8.808921172658299E-13 -2.322531937494451E-14
tp 3.881479567043736E-13 6.112570054609037E-12 5.359802000798359E-8 3.213057184035766E-10 1.01068498319441E-8 -3.164810659404062E-12
node -9.936922857372322E-14 2.968417481898146E-13 3.213057184035766E-10 1.151298860517464E-8 -1.13895029094586E-8 1.513111130384133E-10
peri 1.609455827273029E-13 8.808921172658299E-13 1.01068498319441E-8 -1.13895029094586E-8 1.335431676031358E-8 -1.512213843310523E-10
i 1.016538430648501E-14 -2.322531937494451E-14 -3.164810659404062E-12 1.513111130384133E-10 -1.512213843310523E-10 1.116425437730165E-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 16.8   n/a MPO471270  

312305 (2008 CM54)          Discovered 2008-Feb-07 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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