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JPL Small-Body Database Browser
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(2018 RM4)
Classification: Apollo [NEO]          SPK-ID: 3827567
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 2458372.5 (2018-Sep-11.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5851495472701211 0.0025751  
a 2.205606028724214 0.013107 au
q .9149966595599902 0.00024231 au
i 1.592564016419957 0.0054416 deg
node 241.5341816416189 0.063101 deg
peri 156.4111626503391 0.061569 deg
M 348.1760956615683 0.11512 deg
tp 2458411.796036070772
(2018-Oct-20.29603607)
0.032336 TDB
period 1196.438382835759
3.28
10.665
0.0292
d
yr
n .3008930548907499 0.0026821 deg/d
Q 3.496215397888437 0.020776 au
  Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      4 days  
   first obs. used      2018-09-10  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .3195  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-14 07:27:49  

Additional Information
 Earth MOID = .00597474 au 
 Jupiter MOID = 1.93944 au 
 T_jup = 3.415 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.631114301435141E-6 -6.237803198579434E-7 -8.325679844150964E-5 .0001550403915754511 -.0001501291142217693 1.400926171220746E-5
q -6.237803198579434E-7 5.871320312376176E-8 7.828779540009934E-6 -1.447750475263572E-5 1.400982598507612E-5 -1.318494625527273E-6
tp -8.325679844150964E-5 7.828779540009934E-6 .001045605055409602 -.001955725064091115 .001894567088533585 -.0001758360106908276
node .0001550403915754511 -1.447750475263572E-5 -.001955725064091115 .00398173700656427 -.003883959654494509 .0003253409659196082
peri -.0001501291142217693 1.400982598507612E-5 .001894567088533585 -.003883959654494509 .003790747842816332 -.0003148591018712818
i 1.400926171220746E-5 -1.318494625527273E-6 -.0001758360106908276 .0003253409659196082 -.0003148591018712818 2.961050430032577E-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 25.6   .52076 MPO452105 autocmod 2.6n

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