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(2021 DE1)
Classification: Apollo [NEO]          SPK-ID: 54123274
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09149658539594088 0.00015755  
a 1.082855684776554 0.00015612 au
q .9837780871429156 2.8899e-05 au
i 3.106990816811146 0.0048773 deg
node 341.6803252873345 0.00025 deg
peri 214.5115026865393 0.019474 deg
M 265.6700078115551 0.0080021 deg
tp 2459308.345392609944
(2021-Apr-03.84539261)
0.014746 TDB
period 411.580033442806
1.13
0.089006
0.0002437
d
yr
n .874677998805368 0.00018915 deg/d
Q 1.181933282410192 0.0001704 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      7 days  
   first obs. used      2021-02-18  
   last obs. used      2021-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .53351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-25 05:21:14  

Additional Information
 Earth MOID = .00464197 au 
 Jupiter MOID = 3.77388 au 
 T_jup = 5.712 
[ 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 27.64   .31388 E2021D90 autocmod 2.8

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