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(2018 RB6)
Classification: Apollo [NEO]          SPK-ID: 3829436
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5511595059806255 2.4023e-06  
a 1.781035655981758 1.0144e-05 au
q .7994009236969731 6.8051e-07 au
i 3.520582524884218 0.00017811 deg
node 176.5698817029504 0.00047824 deg
peri 241.5898147151946 0.00054272 deg
M 239.9027654481294 0.0020151 deg
tp 2459290.126205396144
(2021-Mar-16.62620540)		 0.0073338 TDB
period 868.175144345884
2.38		 0.0074168
2.031e-05		 d
yr
n .4146628734357946 3.5424e-06 deg/d
Q 2.762670388266543 1.5734e-05 au
   Orbit Determination Parameters
   # obs. used (total)      107  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      2 days  
   first obs. used      2018-09-12  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .30427  
   source      ORB  
   producer      Giorgini  
   solution date      2019-Feb-13 15:56:33  

Additional Information
 Earth MOID = .00347449 au 
 Jupiter MOID = 2.61388 au 
 T_jup = 3.896 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458375.5 (2018-Sep-14.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5531024670617475 2.3341e-06  
q .7978226303048234 7.0642e-07 au
tp 2458422.175964654446
(2018-Oct-30.67596465)		 9.8994e-05 TDB
node 176.8136207455834 0.00049485 deg
peri 241.3304599507324 0.00056026 deg
i 3.351496105642058 0.00016668 deg
   Orbit Determination Parameters
   # obs. used (total)      107  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      2 days  
   first obs. used      2018-09-12  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .30427  
   source      ORB  
   producer      Giorgini  
   solution date      2019-Feb-13 15:56:33  

Additional Information
 Jupiter MOID = 2.61388 au 
 T_jup = 3.896 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.448193976298687E-12 6.367301496705246E-13 -1.648109183079033E-10 1.080189344711403E-9 -1.30044680715529E-9 -3.625727426620872E-10
q 6.367301496705246E-13 4.990246951756652E-13 -6.338298610530725E-11 1.901810411489019E-11 -1.292798603498213E-10 -4.727136550335823E-12
tp -1.648109183079033E-10 -6.338298610530725E-11 9.799851841640425E-9 -2.071781398878756E-8 3.63846677775667E-8 6.988697090088169E-9
node 1.080189344711403E-9 1.901810411489019E-11 -2.071781398878756E-8 2.448760930068591E-7 -2.664116387358062E-7 -8.206809632513044E-8
peri -1.30044680715529E-9 -1.292798603498213E-10 3.63846677775667E-8 -2.664116387358062E-7 3.138895945139303E-7 8.916543231632033E-8
i -3.625727426620872E-10 -4.727136550335823E-12 6.988697090088169E-9 -8.206809632513044E-8 8.916543231632033E-8 2.778101103031231E-8

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.8   .66044 E2018S67 autocmod 2.6n

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