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21185 (1994 EH6)
Classification: Main-belt Asteroid          SPK-ID: 2021185
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04667328055305295 3.5935e-08  
a 2.338291751561623 1.0026e-08 au
q 2.229156004626097 8.4155e-08 au
i 7.07485052122251 4.2766e-06 deg
node 17.03055709919618 3.1921e-05 deg
peri 93.53559625403304 6.2049e-05 deg
M 279.0359221535982 5.4986e-05 deg
tp 2459690.221911843149
(2022-Apr-20.72191184)		 0.00020044 TDB
period 1306.009912990481
3.58		 8.3995e-06
2.3e-08		 d
yr
n .27564874999737 1.7728e-09 deg/d
Q 2.447427498497148 1.0494e-08 au
   Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      10189 days (27.90 yr)  
   first obs. used      1992-09-30  
   last obs. used      2020-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:41:07  

Additional Information
 Earth MOID = 1.25934 au 
 Jupiter MOID = 2.58287 au 
 T_jup = 3.554 
[ 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 15.64   n/a E2021B10  

21185 (1994 EH6)          Discovered 1994-Mar-09 by Elst, E. W. at Caussols
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 EH6 = 1999 RP188 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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