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(2017 AT4)
Classification: Apollo [NEO]          SPK-ID: 3766342
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .264973868994997 0.00011032  
a 1.375570589182786 0.00022091 au
q 1.011080328091295 1.0616e-05 au
i 2.654627846950585 0.0010006 deg
node 106.9033688496584 0.00017425 deg
peri 4.910725935111161 0.00015978 deg
M 34.61398887452492 0.18202 deg
tp 2458943.840609501767
(2020-Apr-04.34060950)
0.28431 TDB
period 589.2814218350808
1.61
0.14195
0.0003886
d
yr
n .6109135409002447 0.00014716 deg/d
Q 1.740060850274276 0.00027944 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      52 days  
   first obs. used      2017-01-05  
   last obs. used      2017-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .42509  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:21:09  

Additional Information
 Earth MOID = .0279648 au 
 Jupiter MOID = 3.36511 au 
 T_jup = 4.773 
[ 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 26.6   n/a MPO403125  

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