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JPL Small-Body Database Browser
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(2019 YF4)
Classification: Apollo [NEO]          SPK-ID: 3959226
[ 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190849481125867 7.3549e-06  
a 1.270602185902034 1.2188e-05 au
q .992232371931948 1.7338e-07 au
i .2560047904489564 7.0679e-06 deg
node 267.0495737749143 0.0002045 deg
peri 207.9942817790386 0.00027368 deg
M 178.6592494064383 0.002554 deg
tp 2458340.881385204401
(2018-Aug-10.38138520)		 0.0074469 TDB
period 523.1338519384118
1.43		 0.0075273
2.061e-05		 d
yr
n .6881603984641058 9.9018e-06 deg/d
Q 1.548971999872121 1.4859e-05 au
   Orbit Determination Parameters
   # obs. used (total)      77  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      20 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .37812  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-18 04:59:45  

Additional Information
 Earth MOID = .00914365 au 
 Jupiter MOID = 3.53214 au 
 T_jup = 5.059 
[ 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   .38767 E2020-AB7 autocmod 2.8

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