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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2458659547916861 2.5863e-06  
a 1.316419909170859 4.4911e-06 au
q .9927570712957808 1.9044e-08 au
i 7.138866720043389 5.9352e-05 deg
node 162.7740452736561 3.7057e-06 deg
peri 8.820285328037759 4.8419e-05 deg
M 304.8283840018876 0.00026178 deg
tp 2459285.047991220371
(2021-Mar-11.54799122)		 3.3689e-05 TDB
period 551.6836200769437
1.51		 0.0028232
7.73e-06		 d
yr
n .6525479222127177 3.3393e-06 deg/d
Q 1.640082747045936 5.5953e-06 au
   Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      27 days  
   first obs. used      2021-02-16  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .44369  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:13  

Additional Information
 Earth MOID = .00306242 au 
 Jupiter MOID = 3.32418 au 
 T_jup = 4.920 
[ 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 25.02   .26557 E2021G03 autocmod 2.8

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