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(2021 EC)
Classification: Apollo [NEO]          SPK-ID: 54128964
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3468807058493412 0.00011319  
a 1.342751534627229 0.00019576 au
q .8769769345154493 2.4163e-05 au
i 6.229451199052399 0.0019872 deg
node 343.774950258156 7.6883e-05 deg
peri 121.068723582272 0.00098749 deg
M 340.4104688955232 0.0020483 deg
tp 2459231.425266654473
(2021-Jan-16.92526665)
0.0035351 TDB
period 568.3186563391465
1.56
0.12428
0.0003403
d
yr
n .6334474435855375 0.00013853 deg/d
Q 1.808526134739008 0.00026367 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      3 days  
   first obs. used      2021-03-03  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .40003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:26:16  

Additional Information
 Earth MOID = .00407826 au 
 Jupiter MOID = 3.34196 au 
 T_jup = 4.822 
[ 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 27.799   .52153 4 autocmod 2.9c

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