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(2017 TK4)
Classification: Apollo [NEO]          SPK-ID: 3785770
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3042251103245545 0.00014001  
a 1.440808192174083 0.00029489 au
q 1.0024781609534 3.4541e-06 au
i .7224447290376503 0.00032245 deg
node 2.429865300854394 0.0014448 deg
peri 31.65221775642496 0.0028155 deg
M 294.2110164531134 0.19991 deg
tp 2459315.940541785585
(2021-Apr-11.44054179)
0.38622 TDB
period 631.6953508362492
1.73
0.19393
0.000531
d
yr
n .5698949652287701 0.00017496 deg/d
Q 1.879138223394765 0.0003846 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      7 days  
   first obs. used      2017-10-14  
   last obs. used      2017-10-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .58763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:53:18  

Additional Information
 Earth MOID = .00957582 au 
 Jupiter MOID = 3.55383 au 
 T_jup = 4.614 
[ 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 27.9   n/a MPO421497  

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