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(2021 DO1)
Classification: Aten [NEO]          SPK-ID: 54123429
[ 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 2459265.5 (2021-Feb-20.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2396841065330295 0.0011304  
a .8511050191181585 0.00049192 au
q .6471086730450457 0.0013361 au
i 10.91446827565841 0.07032 deg
node 337.2059244899513 0.0068014 deg
peri .8771257039216237 0.012889 deg
M 169.5592343054072 0.01066 deg
tp 2459130.419673941002
(2020-Oct-07.91967394)		 0.11021 TDB
period 286.7960425773668
0.79		 0.24864
0.0006807		 d
yr
n 1.255247446111065 0.0010883 deg/d
Q 1.055101365191271 0.00060983 au
   Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      6 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .4459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:19:41  

Additional Information
 Earth MOID = .0649317 au 
 Jupiter MOID = 4.25217 au 
 T_jup = 6.885 
[ 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 25.32   .35715 E2021-DA1 autocmod 2.8

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