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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04650241180623065 3.5871e-08  
a 2.339187258876502 1.0133e-08 au
q 2.230409409672339 8.4024e-08 au
i 7.07322014658223 4.2791e-06 deg
node 17.03741800757938 3.194e-05 deg
peri 93.08742829796412 6.2323e-05 deg
M 225.4628452549689 5.5132e-05 deg
tp 2459688.855012306456
(2022-Apr-19.35501231)
0.00020173 TDB
period 1306.760238563892
3.58
8.4913e-06
2.325e-08
d
yr
n .2754904758929872 1.7901e-09 deg/d
Q 2.447965108080666 1.0605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      10189 days (27.90 yr)  
   first obs. used      1992-09-30  
   last obs. used      2020-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52814  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:58:26  

Additional Information
 Earth MOID = 1.26015 au 
 Jupiter MOID = 2.58356 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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