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134565 (1999 RK208)
Classification: Main-belt Asteroid          SPK-ID: 2134565
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2340509294421745 5.6198e-08  
a 2.392094257032979 1.1239e-08 au
q 1.832222372861122 1.3061e-07 au
i 8.216411989730688 4.5936e-06 deg
node 320.6669789726652 3.453e-05 deg
peri 89.3406184505929 3.5968e-05 deg
M 186.422639116549 1.1876e-05 deg
tp 2459652.063038104254
(2022-Mar-13.56303810)
4.7741e-05 TDB
period 1351.343818823409
3.70
9.5235e-06
2.607e-08
d
yr
n .2664014849407057 1.8775e-09 deg/d
Q 2.951966141204836 1.3869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1999-09-06  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:08:10  

Additional Information
 Earth MOID = .864469 au 
 Jupiter MOID = 2.50068 au 
 T_jup = 3.480 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457290.5 (2015-Sep-25.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2332992047978557 5.6135e-08  
q 1.835188456898923 1.3041e-07 au
tp 2456949.789133221623
(2014-Oct-19.28913322)
3.6999e-05 TDB
node 320.7122419590536 3.4498e-05 deg
peri 89.52785284338782 3.5947e-05 deg
i 8.218554776603487 4.5943e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1999-09-06  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:08:10  

Additional Information
 Jupiter MOID = 2.50068 au 
 T_jup = 3.480 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.151174768522418E-15 -7.307884223791057E-15 5.87376787245053E-13 -3.370382951999823E-14 7.383567508784786E-14 -6.687763910323437E-15
q -7.307884223791057E-15 1.700557831552112E-14 -1.285132096838704E-12 7.784983969016237E-14 -1.491109668821414E-13 1.552748214849363E-14
tp 5.87376787245053E-13 -1.285132096838704E-12 1.368910587466764E-9 -1.790964249213601E-11 3.920524813264576E-10 -2.888857272055688E-12
node -3.370382951999823E-14 7.784983969016237E-14 -1.790964249213601E-11 1.190128225901418E-9 -1.181537294077532E-9 -1.141298457421229E-11
peri 7.383567508784786E-14 -1.491109668821414E-13 3.920524813264576E-10 -1.181537294077532E-9 1.292169354485203E-9 1.073369559321189E-11
i -6.687763910323437E-15 1.552748214849363E-14 -2.888857272055688E-12 -1.141298457421229E-11 1.073369559321189E-11 2.110764719788107E-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 15.6   n/a MPO475173  
diameter diameter 1.911 km 0.448 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.367   0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134565 (1999 RK208)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1999 RK208 = 2000 AB145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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