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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .534394127093918 5.7574e-05  
a 2.072174816319893 0.00024352 au
q .9648167641666238 5.9198e-06 au
i 1.479177491153007 0.001067 deg
node 292.3583627069746 0.074743 deg
peri 150.4543463749666 0.078715 deg
M 56.1303145072344 0.073449 deg
tp 2458830.623623544143
(2019-Dec-13.12362354)		 0.19235 TDB
period 1089.527041866594
2.98		 0.19206
0.0005258		 d
yr
n .3304186001507982 5.8246e-05 deg/d
Q 3.179532868473161 0.00037366 au
   Orbit Determination Parameters
   # obs. used (total)      23  
   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      .51177  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:21:09  

Additional Information
 Earth MOID = .00465673 au 
 Jupiter MOID = 2.09362 au 
 T_jup = 3.577 
[ 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 26.9   n/a MPO394979  

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