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JPL Small-Body Database Browser
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(2017 QK18)
Classification: Aten [NEO]          SPK-ID: 3781043
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3999550543727631 0.00029835  
a .7694766791883398 0.00011858 au
q .4617205921249942 0.00030073 au
i 4.144717131474379 0.0042592 deg
node 359.2534887455615 0.0003585 deg
peri 147.5442414698001 0.003135 deg
M 90.49195701847762 0.4863 deg
tp 2459334.527488073634
(2021-Apr-30.02748807)
0.31871 TDB
period 246.5424003255494
0.67
0.056992
0.000156
d
yr
n 1.460195080134834 0.00033755 deg/d
Q 1.077232766251685 0.00016601 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      26 days  
   first obs. used      2017-08-24  
   last obs. used      2017-09-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .47485  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:21:14  

Additional Information
 Earth MOID = .00695647 au 
 Jupiter MOID = 3.92521 au 
 T_jup = 7.465 
[ 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 24.5   n/a MPO416604  

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