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(2020 OE4)
Classification: Apollo [NEO]          SPK-ID: 54049766
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 2459061.5 (2020-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4703359649808261 0.001199  
a 1.707698178433303 0.0035345 au
q .9045063077838765 0.00017552 au
i 9.088520739439387 0.015702 deg
node 163.7159315731081 0.01263 deg
peri 201.2698935722045 0.015884 deg
M 339.2483681264247 0.074485 deg
tp 2459108.485608257540
(2020-Sep-15.98560826)
0.022777 TDB
period 815.1078949243199
2.23
2.5306
0.006928
d
yr
n .4416593217189055 0.0013712 deg/d
Q 2.510890049082729 0.0051969 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      19 days  
   first obs. used      2020-07-24  
   last obs. used      2020-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .31302  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-13 05:59:17  

Additional Information
 Earth MOID = .0609911 au 
 Jupiter MOID = 2.95153 au 
 T_jup = 4.045 
[ 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 22.438   .44998 13 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2020-Aug-14 20:28 < 00:01 Earth 0.0642975460659682 0.0638757107064764 0.0647193776277564 10.9989076412001 10.9951393643245 2459076.352625297 0.172429057472651 21020.6865287403 8.87486707766196 -0.0140547447302108 303.218520604757 T 13 CATAB v2.0f-lin.ifort 2020-Aug-13 05:59:20 2020-Aug-13 05:59
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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