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(2021 DN1)
Classification: Apollo [NEO]          SPK-ID: 54123430
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 .4434699752818028 0.00013324  
a 1.716896703430755 0.00040345 au
q .9555045647989091 4.2358e-06 au
i 2.879050722905244 0.00090216 deg
node 330.945422176166 0.00015517 deg
peri 150.859358744747 0.0011815 deg
M 254.446523729696 0.036363 deg
tp 2459241.426580706512
(2021-Jan-26.92658071)
0.0019275 TDB
period 821.7026299753024
2.25
0.28964
0.000793
d
yr
n .4381146985142549 0.00015443 deg/d
Q 2.4782888420626 0.00058237 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      4 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .62915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-22 05:18:46  

Additional Information
 Earth MOID = .00184415 au 
 Jupiter MOID = 2.619 au 
 T_jup = 4.059 
[ 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 28.14   .47076 E2021D77 autocmod 2.8

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