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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483728581463775 8.5794e-08  
a 2.447254031764855 2.7912e-08 au
q 2.084147956461658 1.9519e-07 au
i 6.05493227637229 4.7653e-06 deg
node 260.1240071606086 9.1243e-05 deg
peri 42.6437886849334 9.9436e-05 deg
M 118.564683641784 4.218e-05 deg
tp 2458539.957353882533
(2019-Feb-25.45735388)
0.00015888 TDB
period 1398.353603364732
3.83
2.3923e-05
6.55e-08
d
yr
n .2574456125644933 4.4044e-09 deg/d
Q 2.810360107068052 3.2053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      4086 days (11.19 yr)  
   first obs. used      2008-09-09  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44561  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:51:32  

Additional Information
 Earth MOID = 1.07337 au 
 Jupiter MOID = 2.40166 au 
 T_jup = 3.475 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457611.5 (2016-Aug-11.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491418237977388 8.5934e-08  
q 2.081659738332659 1.9575e-07 au
tp 2457142.741393077513
(2015-Apr-30.24139308)
0.00014496 TDB
node 260.1532222522538 9.1338e-05 deg
peri 42.78921657136451 9.9468e-05 deg
i 6.052241025566529 4.765e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      4086 days (11.19 yr)  
   first obs. used      2008-09-09  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44561  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:51:32  

Additional Information
 Jupiter MOID = 2.40166 au 
 T_jup = 3.475 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.384661601700641E-15 -1.675145105233935E-14 7.856426623392923E-12 1.450202140768789E-13 1.82254164274918E-12 -2.937473677591434E-14
q -1.675145105233935E-14 3.831822934755271E-14 -1.75313438034647E-11 -3.313622732206585E-13 -4.013881295937286E-12 6.637931673027661E-14
tp 7.856426623392923E-12 -1.75313438034647E-11 2.101270712903957E-8 1.082534904520288E-10 5.794617973020865E-9 -5.250462587224923E-11
node 1.450202140768789E-13 -3.313622732206585E-13 1.082534904520288E-10 8.342653333098129E-9 -8.272714821289241E-9 -1.610164506692643E-10
peri 1.82254164274918E-12 -4.013881295937286E-12 5.794617973020865E-9 -8.272714821289241E-9 9.893954839827254E-9 1.458821246335479E-10
i -2.937473677591434E-14 6.637931673027661E-14 -5.250462587224923E-11 -1.610164506692643E-10 1.458821246335479E-10 2.270500486489119E-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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