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(2017 SY20)
Classification: Amor [NEO]          SPK-ID: 3782016
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5556305237247424 6.1313e-05  
a 2.354079639800298 0.00033027 au
q 1.046081136648305 2.4246e-06 au
i 5.446330958439325 0.00042875 deg
node 204.2906194640481 1.2856e-05 deg
peri 183.7745458334139 0.00020109 deg
M 314.8528382881515 0.066231 deg
tp 2459365.946698564208
(2021-May-31.44669856)
0.27753 TDB
period 1319.259267354644
3.61
0.27763
0.0007601
d
yr
n .2728804025927866 5.7426e-05 deg/d
Q 3.66207814295229 0.00051377 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      60 days  
   first obs. used      2017-09-29  
   last obs. used      2017-11-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .50314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:37:42  

Additional Information
 Earth MOID = .0497856 au 
 Jupiter MOID = 1.7924 au 
 T_jup = 3.324 
[ 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 24.2   n/a MPO428363  

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