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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5341668491379311 5.8127e-05  
a 2.072203277047436 0.00024164 au
q .9653009817737117 7.892e-06 au
i 1.478982336327507 0.0010645 deg
node 292.3633343970575 0.074635 deg
peri 150.4356834821562 0.078615 deg
M 187.0292751138944 0.096358 deg
tp 2459920.000457826645
(2022-Dec-06.50045783)
0.38319 TDB
period 1089.549488456417
2.98
0.19057
0.0005218
d
yr
n .3304117929604262 5.7793e-05 deg/d
Q 3.17910557232116 0.00037071 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .5008  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 18:22:10  

Additional Information
 Earth MOID = .00482199 au 
 Jupiter MOID = 2.0954 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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