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(2021 DG)
Classification: Apollo [NEO]          SPK-ID: 54122969
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3844536054421607 0.00031806  
a 1.091119877257078 0.00026868 au
q .6716349064759864 0.00018201 au
i 8.523410510707254 0.0072826 deg
node 330.2190514269805 0.00017774 deg
peri 278.4941879293829 0.0023659 deg
M 77.63210766688505 0.12212 deg
tp 2458910.726945007926
(2020-Mar-02.22694501)
0.17438 TDB
period 416.3006875431292
1.14
0.15377
0.000421
d
yr
n .8647595614713069 0.00031942 deg/d
Q 1.510604848038169 0.00037198 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      1 day  
   first obs. used      2021-02-17  
   last obs. used      2021-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .30109  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-18 03:12:03  

Additional Information
 Earth MOID = .000962068 au 
 Jupiter MOID = 3.55187 au 
 T_jup = 5.605 
[ 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 30.43   .60759 E2021D26 autocmod 2.8

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