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(2020 DA4)
Classification: Apollo [NEO]          SPK-ID: 54005703
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4309924571038903 0.00021933  
a 1.616507744776854 0.00057012 au
q .9198050999280094 3.0147e-05 au
i .868710241509711 0.00018267 deg
node 184.914945110035 0.0052073 deg
peri 19.85636459107909 0.0037439 deg
M 26.69647317100225 0.013068 deg
tp 2458944.830604963888
(2020-Apr-05.33060496)		 0.0022 TDB
period 750.6977451526719
2.06		 0.39714
0.001087		 d
yr
n .4795538581600316 0.0002537 deg/d
Q 2.313210389625699 0.00081583 au
   Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      6 days  
   first obs. used      2020-02-27  
   last obs. used      2020-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .36105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-04 05:53:00  

Additional Information
 Earth MOID = .00532275 au 
 Jupiter MOID = 2.6464 au 
 T_jup = 4.225 
[ 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 25.7   .42167 3 autocmod 2.8

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