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30809 (1990 EO8)
Classification: Main-belt Asteroid          SPK-ID: 2030809
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08118310494768803 6.466e-08  
a 2.716141462041294 1.8495e-08 au
q 2.495636664675628 1.8089e-07 au
i 9.825913887001509 6.0664e-06 deg
node 349.2666457266262 2.7749e-05 deg
peri 180.8724738279186 4.4061e-05 deg
M 319.9043173197866 3.8665e-05 deg
tp 2457782.605103077313
(2017-Jan-29.10510308)
0.00017652 JED
period 1635.034814862612
4.48
1.67e-05
4.572e-08
d
yr
n .2201787978626314 2.2489e-09 deg/d
Q 2.936646259406959 1.9997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      10008 days (27.40 yr)  
   first obs. used      1988-11-05  
   last obs. used      2016-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50781  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:56:47  

Additional Information
 Earth MOID = 1.5008 au 
 Jupiter MOID = 2.03917 au 
 T_jup = 3.335 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO365618  

30809 (1990 EO8)          Discovered 1990-Mar-07 by Debehogne, H. at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 EO8 = 1988 VT8 = 1999 GC22 = 2001 QP240 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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