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JPL Small-Body Database Browser
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(2016 DY21)
Classification: Apollo [NEO]          SPK-ID: 3744993
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4210259913502039 0.00020599  
a 1.288374872630659 0.00032788 au
q .745935564650643 7.5699e-05 au
i 6.499690729679078 0.0029394 deg
node 149.1708420811897 0.00056017 deg
peri 279.8919095091131 0.002001 deg
M 276.4599177590599 0.53503 deg
tp 2459520.452186980599
(2021-Nov-01.95218698)
0.84116 TDB
period 534.1482329921337
1.46
0.2039
0.0005582
d
yr
n .6739702160641645 0.00025728 deg/d
Q 1.830814180610675 0.00046592 au
  Orbit Determination Parameters
   # obs. used (total)      27  
   data-arc span      16 days  
   first obs. used      2016-02-29  
   last obs. used      2016-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .45175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 16:30:11  

Additional Information
 Earth MOID = .000213878 au 
 Jupiter MOID = 3.49303 au 
 T_jup = 4.936 
[ 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 25.8   n/a MPO370766  

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