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441479 (2008 RD129)
Classification: Main-belt Asteroid          SPK-ID: 2441479
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483093505316464 8.5747e-08  
a 2.447581201745019 2.7907e-08 au
q 2.084582023340749 1.9505e-07 au
i 6.054230353234274 4.3961e-06 deg
node 260.1222627932186 7.4499e-05 deg
peri 42.7057760922952 8.1496e-05 deg
M 169.9754136917046 3.7891e-05 deg
tp 2458540.129451045760
(2019-Feb-25.62945105)		 0.00013885 TDB
period 1398.634028652632
3.83		 2.392e-05
6.549e-08		 d
yr
n .2573939948728436 4.4021e-09 deg/d
Q 2.81058038014929 3.2045e-08 au
   Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      4514 days (12.36 yr)  
   first obs. used      2008-09-09  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:42:54  

Additional Information
 Earth MOID = 1.07185 au 
 Jupiter MOID = 2.40097 au 
 T_jup = 3.475 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457788.5 (2017-Feb-04.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491747343775253 8.5751e-08  
q 2.08144720554891 1.952e-07 au
tp 2457142.640272199262
(2015-Apr-30.14027220)		 0.00012232 TDB
node 260.1537406190141 7.4561e-05 deg
peri 42.75605114198781 8.1516e-05 deg
i 6.052520804796129 4.396e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      4514 days (12.36 yr)  
   first obs. used      2008-09-09  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 17:42:54  

Additional Information
 Jupiter MOID = 2.40097 au 
 T_jup = 3.475 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.353211085602631E-15 -1.6669318884748E-14 7.525956340328031E-12 1.221893778727478E-14 1.854526404617452E-12 -2.41163374956276E-14
q -1.6669318884748E-14 3.810475979982558E-14 -1.663273543213723E-11 -3.062376453398534E-14 -4.040406203876901E-12 5.418767317305009E-14
tp 7.525956340328031E-12 -1.663273543213723E-11 1.496250583612881E-8 -3.382764973074551E-11 4.084919145400203E-9 -3.583370473117906E-11
node 1.221893778727478E-14 -3.062376453398534E-14 -3.382764973074551E-11 5.559358512715977E-9 -5.539920061752715E-9 -6.437782021565175E-11
peri 1.854526404617452E-12 -4.040406203876901E-12 4.084919145400203E-9 -5.539920061752715E-9 6.644830942322314E-9 5.458857286073262E-11
i -2.41163374956276E-14 5.418767317305009E-14 -3.583370473117906E-11 -6.437782021565175E-11 5.458857286073262E-11 1.932475573198038E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO503569  

441479 (2008 RD129)          Discovered 2008-Sep-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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