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(2021 DX1)
Classification: Apollo [NEO]          SPK-ID: 54123836
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3371083702006192 0.0002241  
a 1.442916486780965 0.00046773 au
q .9564972615866306 1.3313e-05 au
i 6.061979023558321 0.0035941 deg
node 348.1572840716826 0.00040562 deg
peri 132.0209011304117 0.0003912 deg
M 337.8558321529197 0.0089672 deg
tp 2459239.441895253968
(2021-Jan-24.94189525)
0.0031663 TDB
period 633.0823713150641
1.73
0.30782
0.0008428
d
yr
n .5686463820690404 0.00027649 deg/d
Q 1.9293357119753 0.0006254 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      8 days  
   first obs. used      2021-02-20  
   last obs. used      2021-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40627  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-01 05:32:56  

Additional Information
 Earth MOID = .0263278 au 
 Jupiter MOID = 3.16244 au 
 T_jup = 4.592 
[ 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 22.97   .61935 E2021-DA1 autocmod 2.8

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