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(2018 RF2)
Classification: Apollo [NEO]          SPK-ID: 3827322
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3399208148852524 0.00024148  
a 1.023958115055207 0.00012888 au
q .675893438177274 0.00016224 au
i 9.640671827464701 0.0085126 deg
node 344.2453298231157 0.00025049 deg
peri 110.9650896688646 0.0033656 deg
M 169.5189052706967 0.080902 deg
tp 2458822.287832009019
(2019-Dec-04.78783201)
0.051404 TDB
period 378.4615077256724
1.04
0.071454
0.0001956
d
yr
n .9512195894461895 0.00017959 deg/d
Q 1.37202279193314 0.00017269 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      1 day  
   first obs. used      2018-09-07  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43572  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-09 07:02:22  

Additional Information
 Earth MOID = .0102641 au 
 Jupiter MOID = 3.80587 au 
 T_jup = 5.904 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458369.5 (2018-Sep-08.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3397846351102802 0.0002414  
q .6756923269116121 0.00016107 au
tp 2458443.967075661535
(2018-Nov-21.46707566)
0.020724 TDB
node 344.314172300925 0.00010275 deg
peri 110.9824307492855 0.0036231 deg
i 9.729612825238197 0.0083706 deg
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      1 day  
   first obs. used      2018-09-07  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .43572  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-09 07:02:22  

Additional Information
 Jupiter MOID = 3.80587 au 
 T_jup = 5.904 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.82721087542754E-8 -3.887872347474083E-8 -5.002104970184868E-6 2.43788135186913E-8 -8.630738862437166E-7 2.015038458814085E-6
q -3.887872347474083E-8 2.594463604405724E-8 3.336724743441769E-6 -1.628414189706052E-8 5.74536046451862E-7 -1.345164929059941E-6
tp -5.002104970184868E-6 3.336724743441769E-6 .0004294770141528476 -2.089033057513894E-6 7.426222985907658E-5 -.0001728201553924338
node 2.43788135186913E-8 -1.628414189706052E-8 -2.089033057513894E-6 1.055675859613965E-8 -3.553721550489066E-7 8.528810075494379E-7
peri -8.630738862437166E-7 5.74536046451862E-7 7.426222985907658E-5 -3.553721550489066E-7 1.312666128924713E-5 -2.96081643951908E-5
i 2.015038458814085E-6 -1.345164929059941E-6 -.0001728201553924338 8.528810075494379E-7 -2.96081643951908E-5 7.006774572582112E-5

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 28.2   .71211 MPO452097 autocmod 2.6n

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