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21183 (1994 EO2)
Classification: Mars-crossing Asteroid          SPK-ID: 2021183
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2839480067204863 1.5975e-08  
a 2.296285285145435 8.5526e-09 au
q 1.644259655566805 3.9657e-08 au
i 23.0829482706687 9.5053e-07 deg
node 4.206631941662544 1.5281e-06 deg
peri 77.56680510540438 3.2641e-06 deg
M 313.4831160585999 4.2512e-06 deg
tp 2459364.727281888069
(2021-May-30.22728189)
1.5577e-05 TDB
period 1270.975535553584
3.48
7.1007e-06
1.944e-08
d
yr
n .2832469940841144 1.5825e-09 deg/d
Q 2.948310914724064 1.0981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      16568 days (45.36 yr)  
   first obs. used      1975-10-03  
   last obs. used      2021-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40942  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:55:10  

Additional Information
 Earth MOID = .799736 au 
 Jupiter MOID = 2.70947 au 
 T_jup = 3.438 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.24   n/a E2021B10  

21183 (1994 EO2)          Discovered 1994-Mar-09 by Helin, E. F. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1994 EO2 = 1975 TU = 1982 TJ3 = 1994 FO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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