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447979 (2008 CG128)
Classification: Main-belt Asteroid          SPK-ID: 2447979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0524167237947342 6.8979e-08  
a 2.835663630435817 7.9294e-08 au
q 2.687027433144489 1.754e-07 au
i 2.339387379482386 1.3358e-05 deg
node 160.5893454542373 0.0002434 deg
peri 111.6856365466931 0.00034429 deg
M 89.40342783512504 0.00023313 deg
tp 2458567.356136276745
(2019-Mar-24.85613628)
0.0011423 TDB
period 1744.136603217679
4.78
7.3158e-05
2.003e-07
d
yr
n .2064058510874964 8.6577e-09 deg/d
Q 2.984299827727144 8.3451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4556 days (12.47 yr)  
   first obs. used      2006-11-20  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54132  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:16:08  

Additional Information
 Earth MOID = 1.6719 au 
 Jupiter MOID = 2.05819 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05307376978829422 6.4444e-08  
q 2.686489241129725 1.7023e-07 au
tp 2456833.526355574443
(2014-Jun-25.02635557)
0.0011953 TDB
node 160.668806880757 0.00024349 deg
peri 114.0518906225194 0.00034417 deg
i 2.33920410167366 1.3367e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      4556 days (12.47 yr)  
   first obs. used      2006-11-20  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54132  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:16:08  

Additional Information
 Jupiter MOID = 2.05819 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.15303953721292E-15 -9.964060359455596E-15 -2.889097617679611E-11 -5.740906119549039E-15 -5.942967175638508E-12 4.913576632799553E-15
q -9.964060359455596E-15 2.897978829925141E-14 1.343602707095776E-11 4.764610719054736E-14 3.00446412700219E-12 1.339516263974482E-16
tp -2.889097617679611E-11 1.343602707095776E-11 1.428805445379535E-6 -9.605295220987658E-10 2.909057908223815E-7 -2.870981718526921E-10
node -5.740906119549039E-15 4.764610719054736E-14 -9.605295220987658E-10 5.928848927512329E-8 -5.943193245031836E-8 2.169445969282113E-9
peri -5.942967175638508E-12 3.00446412700219E-12 2.909057908223815E-7 -5.943193245031836E-8 1.18455439239825E-7 -2.225822673825654E-9
i 4.913576632799553E-15 1.339516263974482E-16 -2.870981718526921E-10 2.169445969282113E-9 -2.225822673825654E-9 1.786853561773588E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO440858  

447979 (2008 CG128)          Discovered 2008-Feb-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

Alternate Designations
 2008 CG128 = 2013 EJ55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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