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(2017 TA4)
Classification: Apollo [NEO]          SPK-ID: 3785761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7088903764770167 9.0058e-08  
a 2.425304423280044 4.5951e-08 au
q .7060294575896798 2.2969e-07 au
i 27.36863271870658 4.497e-05 deg
node 177.4592050816039 5.05e-05 deg
peri 116.6357568866201 4.7009e-05 deg
M 317.6678697381651 7.352e-06 deg
tp 2459362.724124195621
(2021-May-28.22412420)
3.1575e-05 TDB
period 1379.582939700895
3.78
3.9207e-05
1.073e-07
d
yr
n .2609484284272541 7.4161e-09 deg/d
Q 4.144579388970408 7.8525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      1478 days (4.05 yr)  
   first obs. used      2017-03-19  
   last obs. used      2021-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-06 06:26:51  

Additional Information
 Earth MOID = .0607468 au 
 Jupiter MOID = 2.19968 au 
 T_jup = 3.001 
[ 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 19.37   n/a E2021D74  

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