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JPL Small-Body Database Browser
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(2018 RB4)
Classification: Apollo [NEO]          SPK-ID: 3827431
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121871200589955 0.00023837  
a 1.063612347582153 0.00020532 au
q .9442887414477239 7.1257e-05 au
i 5.40073975929044 0.013773 deg
node 337.3853796184029 0.0043484 deg
peri 101.5706893190864 0.01983 deg
M 126.5647758046121 0.016534 deg
tp 2458459.641248097219
(2018-Dec-07.14124810)
0.02239 TDB
period 400.6576898084563
1.10
0.11601
0.0003176
d
yr
n .8985226270637821 0.00026017 deg/d
Q 1.182935953716582 0.00022835 au
  Orbit Determination Parameters
   # obs. used (total)      26  
   data-arc span      20 days  
   first obs. used      2018-09-10  
   last obs. used      2018-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .26153  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-30 06:45:38  

Additional Information
 Earth MOID = .0264818 au 
 Jupiter MOID = 3.91919 au 
 T_jup = 5.787 
[ show covariance matrix ]

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 26.9   .40279 E2018S72 autocmod 2.6n

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