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JPL Small-Body Database Browser
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(2018 SM3)
Classification: Amor [NEO]          SPK-ID: 3831066
[ 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 2458394.5 (2018-Oct-03.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .542335404761437 0.00096224  
a 2.272030103882704 0.0049167 au
q 1.039827737863308 6.398e-05 au
i 8.618882721132467 0.010635 deg
node 188.3889347121289 0.0010319 deg
peri 191.4124565147801 0.0031645 deg
M 357.6719443635967 0.0089675 deg
tp 2458402.589289963622
(2018-Oct-11.08928996)		 0.0049054 TDB
period 1250.891233597401
3.42		 4.0604
0.01112		 d
yr
n .2877948060797315 0.00093419 deg/d
Q 3.5042324699021 0.0075833 au
   Orbit Determination Parameters
   # obs. used (total)      31  
   data-arc span      17 days  
   first obs. used      2018-09-30  
   last obs. used      2018-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .28709  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-21 07:09:17  

Additional Information
 Earth MOID = .0442357 au 
 Jupiter MOID = 1.95257 au 
 T_jup = 3.388 
[ 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 25.3   .33988 MPO458780 autocmod 2.6n

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