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(2021 DB1)
Classification: Apollo [NEO]          SPK-ID: 54123271
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 2459264.5 (2021-Feb-19.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5443815573954055 0.00079412  
a 1.612242014086784 0.0023356 au
q .7345671955599153 0.0002162 au
i 12.06229225801801 0.015368 deg
node 147.6651304187291 6.5923e-05 deg
peri 79.85713041262196 0.0038762 deg
M 335.8544390634461 0.064746 deg
tp 2459314.650882179876
(2021-Apr-10.15088218)
0.025502 TDB
period 747.7282317936526
2.05
1.6248
0.004448
d
yr
n .4814583490266657 0.0010462 deg/d
Q 2.489916832613653 0.003607 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      2 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .5207  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:07  

Additional Information
 Earth MOID = .0182689 au 
 Jupiter MOID = 2.58369 au 
 T_jup = 4.141 
[ 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 26.27   .41632 E2021D69 autocmod 2.8

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