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(2018 SD1)
Classification: Apollo [NEO]          SPK-ID: 3830851
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .43345629686827 0.00045715  
a 1.096752106272621 0.00052099 au
q .6213579997052154 0.00020622 au
i 18.06070047168962 0.021622 deg
node 177.2729947985113 0.00043343 deg
peri 70.18343868247467 0.015177 deg
M 229.296784059459 0.45001 deg
tp 2459152.815785772487
(2020-Oct-30.31578577)
0.63295 TDB
period 419.528184394789
1.15
0.29893
0.0008184
d
yr
n .8581068290306543 0.00061144 deg/d
Q 1.572146212840027 0.00074682 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      15 days  
   first obs. used      2018-09-17  
   last obs. used      2018-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .47749  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 06:27:48  

Additional Information
 Earth MOID = .0213161 au 
 Jupiter MOID = 3.52951 au 
 T_jup = 5.531 
[ 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 24.6   .32586 E2018T36 autocmod 2.6n

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