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(2021 DE1)
Classification: Apollo [NEO]          SPK-ID: 54123274
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09151068761800339 0.00011846  
a 1.082868690045745 0.00011738 au
q .983774631619652 2.1695e-05 au
i 3.107446024144684 0.0036797 deg
node 341.6802469510346 0.00016131 deg
peri 214.5141321848721 0.014642 deg
M 265.6698891141889 0.0059308 deg
tp 2459308.347471182799
(2021-Apr-03.84747118)		 0.011069 TDB
period 411.5874481776717
1.13		 0.066924
0.0001832		 d
yr
n .8746622415088744 0.00014222 deg/d
Q 1.181962748471837 0.00012812 au
   Orbit Determination Parameters
   # obs. used (total)      35  
   data-arc span      8 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .51196  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:10  

Additional Information
 Earth MOID = .00464248 au 
 Jupiter MOID = 3.77385 au 
 T_jup = 5.712 
[ 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 27.5   .31388 MPO606212 autocmod 2.8

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