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215979 (2005 RD11)
Classification: Main-belt Asteroid          SPK-ID: 2215979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07885790819821034 4.7621e-08  
a 3.1467343462894 3.5698e-08 au
q 2.898589458085555 1.6468e-07 au
i 12.09500868569383 6.026e-06 deg
node 215.1074013789938 2.264e-05 deg
peri 113.058574315646 4.4699e-05 deg
M 257.721504338414 3.9475e-05 deg
tp 2459579.755783244082
(2021-Dec-31.25578324)
0.000227 TDB
period 2038.865360885343
5.58
3.4695e-05
9.499e-08
d
yr
n .1765687950300338 3.0046e-09 deg/d
Q 3.394879234493245 3.8513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      9315 days (25.50 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51355  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:23:47  

Additional Information
 Earth MOID = 1.91602 au 
 Jupiter MOID = 1.91121 au 
 T_jup = 3.170 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457316.5 (2015-Oct-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07762567954516152 4.7687e-08  
q 2.904126038027219 1.6484e-07 au
tp 2457542.450381485328
(2016-Jun-02.95038149)
0.00022024 TDB
node 215.1283869683226 2.264e-05 deg
peri 113.5320464289412 4.52e-05 deg
i 12.09261378005612 6.0251e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      9315 days (25.50 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51355  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:23:47  

Additional Information
 Jupiter MOID = 1.91121 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.274019155204857E-15 -7.722292671048368E-15 1.255561141715514E-12 -1.196509631131456E-15 2.77474048653012E-13 -1.944460139116469E-15
q -7.722292671048368E-15 2.717262760433981E-14 -2.335219693417495E-12 -1.247546264291798E-15 -6.173804735784564E-13 8.811057604866596E-15
tp 1.255561141715514E-12 -2.335219693417495E-12 4.850456832790719E-8 -5.202203635494586E-11 8.636817083249178E-9 6.945568825430549E-12
node -1.196509631131456E-15 -1.247546264291798E-15 -5.202203635494586E-11 5.125552608799404E-10 -5.099860008193472E-10 -1.899831801349433E-12
peri 2.77474048653012E-13 -6.173804735784564E-13 8.636817083249178E-9 -5.099860008193472E-10 2.043051997860708E-9 2.999748217670637E-12
i -1.944460139116469E-15 8.811057604866596E-15 6.945568825430549E-12 -1.899831801349433E-12 2.999748217670637E-12 3.630136636541217E-11

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 14.9   n/a MPO433413  
diameter diameter 4.870 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.108   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215979 (2005 RD11)          Discovered 2005-Sep-10 by LONEOS at Anderson Mesa
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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