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(2001 SY169 = 2013 ET)
Classification: Apollo [NEO]          SPK-ID: 3092330
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3841991213631292 7.2617e-08  
a 1.205648373840681 6.5517e-09 au
q .7424393279382061 8.9522e-08 au
i 4.851464005614116 9.7582e-06 deg
node 171.2976627827248 1.0323e-05 deg
peri 81.94605927378734 1.6771e-05 deg
M 270.6052972930389 1.7853e-05 deg
tp 2459320.571160344465
(2021-Apr-16.07116034)
2.4958e-05 TDB
period 483.5366796364039
1.32
3.9414e-06
1.079e-08
d
yr
n .7445143567406355 6.0687e-09 deg/d
Q 1.668857419743156 9.0688e-09 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   # delay obs. used      5  
   # Doppler obs. used      3  
   data-arc span      4190 days (11.47 yr)  
   first obs. used      2001-09-19  
   last obs. used      2013-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 16:28:14  

Additional Information
 Earth MOID = .00416 au 
 Jupiter MOID = 3.38424 au 
 T_jup = 5.201 
[ 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 23.1   n/a E2021D69  

[ show close-approach data ]
Alternate Designations
 2001 SY169 = 2013 ET 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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