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(2021 DW1)
Classification: Apollo [NEO]          SPK-ID: 54123628
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2456525227519246 0.00056789  
a 1.316047913806816 0.00098959 au
q .9927574237177644 2.1732e-06 au
i 7.133775604991421 0.013538 deg
node 162.7742325163625 0.0014006 deg
peri 8.817167389247095 0.0083278 deg
M 304.8063547384935 0.058569 deg
tp 2459285.045900793232
(2021-Mar-11.54590079)
0.0056539 TDB
period 551.4497935651062
1.51
0.62198
0.001703
d
yr
n .6528246164942975 0.00073633 deg/d
Q 1.639338403895868 0.0012327 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      8 days  
   first obs. used      2021-02-16  
   last obs. used      2021-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .30085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:19:42  

Additional Information
 Earth MOID = .00305963 au 
 Jupiter MOID = 3.32492 au 
 T_jup = 4.921 
[ 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 25.18   .26557 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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