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(2019 SY4)
Classification: Amor [NEO]          SPK-ID: 3856734
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 .6072459116531393 0.00044243  
a 2.629962188411246 0.0030082 au
q 1.032928401696174 1.7917e-05 au
i 4.563200608160614 0.0022409 deg
node 352.3275141965809 0.0017194 deg
peri 354.6083639440995 0.00067144 deg
M 60.03386317458411 0.103 deg
tp 2458740.713562713410
(2019-Sep-14.21356271)
0.00011226 TDB
period 1557.839400592934
4.27
2.6728
0.007318
d
yr
n .2310892893471428 0.00039649 deg/d
Q 4.226995975126319 0.004835 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      27 days  
   first obs. used      2019-09-22  
   last obs. used      2019-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .49837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-20 06:04:05  

Additional Information
 Earth MOID = .0274817 au 
 Jupiter MOID = 1.20784 au 
 T_jup = 3.105 
[ 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 24.7   .26035 MPO504270 autocmod 2.8

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