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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214984647521669 3.9574e-06  
a 1.26273095264091 6.5062e-06 au
q .9912631838727026 1.1063e-07 au
i .2064411068949708 4.8361e-06 deg
node 260.1698730385738 0.00037748 deg
peri 216.5828971255739 0.00038547 deg
M 93.79852985291502 0.00071328 deg
tp 2458865.461315991410
(2020-Jan-16.96131599)		 2.2229e-05 TDB
period 518.2802579030127
1.42		 0.0040056
1.097e-05		 d
yr
n .6946048870481341 5.3684e-06 deg/d
Q 1.534198721409118 7.9049e-06 au
   Orbit Determination Parameters
   # obs. used (total)      88  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      28 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .4667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 07:28:06  

Additional Information
 Earth MOID = .0078231 au 
 Jupiter MOID = 3.53886 au 
 T_jup = 5.083 
[ 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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