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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 ]

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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07901658659506694 4.7031e-08  
a 3.147213124682738 3.4673e-08 au
q 2.898531086283113 1.639e-07 au
i 12.09411414192521 6.0231e-06 deg
node 215.1048861206569 2.0784e-05 deg
peri 112.9611976593823 4.3624e-05 deg
M 293.148939930319 3.9571e-05 deg
tp 2459579.198386710170
(2021-Dec-30.69838671)
0.00022649 TDB
period 2039.330701316609
5.58
3.3701e-05
9.227e-08
d
yr
n .1765285050470632 2.9173e-09 deg/d
Q 3.395895163082363 3.7413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      9367 days (25.65 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:38:50  

Additional Information
 Earth MOID = 1.91417 au 
 Jupiter MOID = 1.90935 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457502.5 (2016-Apr-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07774601182754463 4.7114e-08  
q 2.904256891172686 1.6406e-07 au
tp 2457542.005127799557
(2016-Jun-02.50512780)
0.00021912 TDB
node 215.1220118737611 2.0781e-05 deg
peri 113.4470476589741 4.4107e-05 deg
i 12.0924721668133 6.0225e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      9367 days (25.65 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:38:50  

Additional Information
 Jupiter MOID = 1.90935 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.219711444632783E-15 -7.604081499267761E-15 1.390714558514154E-12 -2.747713765792878E-15 3.11244770536733E-13 -1.988740548727924E-15
q -7.604081499267761E-15 2.691716187632934E-14 -2.628148581071348E-12 2.716912369315519E-15 -6.912501272208286E-13 8.877748531065883E-15
tp 1.390714558514154E-12 -2.628148581071348E-12 4.801405108167396E-8 -6.55094204313524E-11 8.539345724493945E-9 7.453268064977511E-12
node -2.747713765792878E-15 2.716912369315519E-15 -6.55094204313524E-11 4.318438777468865E-10 -4.334879915414283E-10 -9.341255969300392E-13
peri 3.11244770536733E-13 -6.912501272208286E-13 8.539345724493945E-9 -4.334879915414283E-10 1.945464029650095E-9 2.158926155203135E-12
i -1.988740548727924E-15 8.877748531065883E-15 7.453268064977511E-12 -9.341255969300392E-13 2.158926155203135E-12 3.627077471318017E-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 14.98   n/a E2021B55  
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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