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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458857.5 (2020-Jan-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232907581953498 3.6898e-06  
q .9912570392211028 1.1085e-07 au
tp 2458864.630279914505
(2020-Jan-16.13027991)
2.7538e-05 TDB
node 265.8827047803038 0.0001599 deg
peri 209.9144505724134 0.0001702 deg
i .2413559400369431 3.7951e-06 deg
  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
 Jupiter MOID = 3.53886 au 
 T_jup = 5.083 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.361485078088416E-11 4.081691444936906E-13 8.830501886271785E-11 -6.11467486478097E-11 1.986820765178084E-10 1.275407345885151E-11
q 4.081691444936906E-13 1.228754567009212E-14 2.63057654896893E-12 -1.876992022325924E-12 5.980761052229088E-12 3.820979216394067E-13
tp 8.830501886271785E-11 2.63057654896893E-12 7.583391574959015E-10 -6.648588445241483E-10 1.755039123909402E-9 8.033291850194126E-11
node -6.11467486478097E-11 -1.876992022325924E-12 -6.648588445241483E-10 2.556923212705712E-8 -2.646866692104919E-8 1.569122489873752E-10
peri 1.986820765178084E-10 5.980761052229088E-12 1.755039123909402E-9 -2.646866692104919E-8 2.896920503190953E-8 -3.057065299656741E-11
i 1.275407345885151E-11 3.820979216394067E-13 8.033291850194126E-11 1.569122489873752E-10 -3.057065299656741E-11 1.440315941172769E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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