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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148309357260484 8.5163e-08  
a 2.447581199863183 2.7904e-08 au
q 2.08458200526863 1.9351e-07 au
i 6.054229748263591 4.3678e-06 deg
node 260.1222667232554 7.2049e-05 deg
peri 42.70577538867708 7.9027e-05 deg
M 169.975411001193 3.7567e-05 deg
tp 2458540.129462260246
(2019-Feb-25.62946226)
0.0001375 TDB
period 1398.63402703961
3.83
2.3918e-05
6.548e-08
d
yr
n .2573939951696918 4.4017e-09 deg/d
Q 2.810580394457736 3.2043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      4542 days (12.44 yr)  
   first obs. used      2008-09-09  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:40:57  

Additional Information
 Earth MOID = 1.07185 au 
 Jupiter MOID = 2.40097 au 
 T_jup = 3.475 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457846.5 (2017-Apr-03.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491910651952838 8.5147e-08  
q 2.081370704777395 1.9361e-07 au
tp 2458540.161366942007
(2019-Feb-25.66136694)
0.00013691 TDB
node 260.1544053527137 7.2109e-05 deg
peri 42.74179093339288 7.9044e-05 deg
i 6.052608731337425 4.3677e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      4542 days (12.44 yr)  
   first obs. used      2008-09-09  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:40:57  

Additional Information
 Jupiter MOID = 2.40097 au 
 T_jup = 3.475 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.249988158350465E-15 -1.641587453506209E-14 8.72190451997423E-12 1.544968079599941E-14 1.814144121227306E-12 -2.314260072825325E-14
q -1.641587453506209E-14 3.748303538568893E-14 -1.899448415219078E-11 -3.751781530515586E-14 -3.940605014060391E-12 5.190137071532193E-14
tp 8.72190451997423E-12 -1.899448415219078E-11 1.874337663967878E-8 -1.882246067300688E-11 4.460962834524452E-9 -3.899245694035488E-11
node 1.544968079599941E-14 -3.751781530515586E-14 -1.882246067300688E-11 5.199676059837071E-9 -5.177876721239062E-9 -6.301679141609614E-11
peri 1.814144121227306E-12 -3.940605014060391E-12 4.460962834524452E-9 -5.177876721239062E-9 6.248021972243588E-9 5.36704845146554E-11
i -2.314260072825325E-14 5.190137071532193E-14 -3.899245694035488E-11 -6.301679141609614E-11 5.36704845146554E-11 1.90768208338161E-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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