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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2840221750504648 1.5969e-08  
a 2.296445351672476 8.5168e-09 au
q 1.64420394800593 3.9659e-08 au
i 23.08300398473483 9.505e-07 deg
node 4.205714375541379 1.528e-06 deg
peri 77.57598370274766 3.2644e-06 deg
M 8.994980783638724 4.444e-06 deg
tp 2459364.740011354416
(2021-May-30.24001135)
1.5578e-05 TDB
period 1271.108431182777
3.48
7.0712e-06
1.936e-08
d
yr
n .2832173803339634 1.5755e-09 deg/d
Q 2.948686755339022 1.0936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      16568 days (45.36 yr)  
   first obs. used      1975-10-03  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:17  

Additional Information
 Earth MOID = .799986 au 
 Jupiter MOID = 2.70913 au 
 T_jup = 3.438 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.23   n/a MPCxxxxx  

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

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