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(2017 AP4)
Classification: Apollo [NEO]          SPK-ID: 3766337
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5343265345352457 5.7687e-05  
a 2.072054214361584 0.0002425 au
q .9649006666326075 6.6088e-06 au
i 1.479151298718288 0.0010657 deg
node 292.3587336028539 0.074648 deg
peri 150.4482398028601 0.078629 deg
M 122.2355011866638 0.085012 deg
tp 2458830.590951282894
(2019-Dec-13.09095128)
0.19233 TDB
period 1089.43192644828
2.98
0.19125
0.0005236
d
yr
n .3304474481243236 5.8009e-05 deg/d
Q 3.17920776209056 0.00037207 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      29 days  
   first obs. used      2017-01-04  
   last obs. used      2017-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .5008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-22 06:44:26  

Additional Information
 Earth MOID = .00463512 au 
 Jupiter MOID = 2.09449 au 
 T_jup = 3.578 
[ 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 27.0   n/a E2020-SF4  

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