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(2020 FW4)
Classification: Apollo [NEO, PHA]          SPK-ID: 54016360
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6952733687990114 0.0004338  
a 2.294202385461905 0.0028667 au
q .6991045642150784 0.00012167 au
i 5.135839185473913 0.0019526 deg
node 50.2390821847231 0.0061644 deg
peri 222.5712136952307 0.0053078 deg
M 2.231118277885925 0.0012093 deg
tp 2458992.633779597659
(2020-May-23.13377960)
0.01048 TDB
period 1269.246625295883
3.48
2.379
0.006513
d
yr
n .2836328203087228 0.00053162 deg/d
Q 3.889300206708732 0.0048599 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      18 days  
   first obs. used      2020-03-23  
   last obs. used      2020-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .38362  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-22 06:33:16  

Additional Information
 Earth MOID = .0471242 au 
 Jupiter MOID = 1.28864 au 
 T_jup = 3.219 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458939.5 (2020-Mar-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6952687312023837 0.00043377  
q .6990430240956678 0.00012157 au
tp 2458992.638332829564
(2020-May-23.13833283)
0.01049 TDB
node 50.28718998848447 0.0060981 deg
peri 222.5343742863129 0.005261 deg
i 5.128809690149404 0.0019615 deg
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      18 days  
   first obs. used      2020-03-23  
   last obs. used      2020-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .38362  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-22 06:33:16  

Additional Information
 Jupiter MOID = 1.28864 au 
 T_jup = 3.219 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.881590553736532E-7 -5.273456546269193E-8 -4.550079851208683E-6 2.643401790058094E-6 -2.280396711482781E-6 8.507943829293688E-7
q -5.273456546269193E-8 1.477990052398909E-8 1.275223904742307E-6 -7.40900731089382E-7 6.391348255572407E-7 -2.384452748146863E-7
tp -4.550079851208683E-6 1.275223904742307E-6 .0001100308200382168 -6.392070989578952E-5 5.514365973777254E-5 -2.057415697295848E-5
node 2.643401790058094E-6 -7.40900731089382E-7 -6.392070989578952E-5 3.718715306350285E-5 -3.208070808810476E-5 1.19478350692383E-5
peri -2.280396711482781E-6 6.391348255572407E-7 5.514365973777254E-5 -3.208070808810476E-5 2.767850520015543E-5 -1.030694034820279E-5
i 8.507943829293688E-7 -2.384452748146863E-7 -2.057415697295848E-5 1.19478350692383E-5 -1.030694034820279E-5 3.847489541647006E-6

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 21.701   .36346 19 autocmod 2.8

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