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9953 (1991 EB)
Classification: Main-belt Asteroid          SPK-ID: 2009953
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122236341156068 4.5314e-08  
a 2.625259595785666 1.4358e-08 au
q 2.304357468211969 1.2013e-07 au
i 2.831477839345974 4.405e-06 deg
node 255.9034330581134 0.00011158 deg
peri 211.2491155714519 0.00011386 deg
M 41.06630629664309 2.2134e-05 deg
tp 2457423.268893044193
(2016-Feb-04.76889304)
9.5315e-05 JED
period 1553.662947994575
4.25
1.2746e-05
3.49e-08
d
yr
n .2317104880853844 1.901e-09 deg/d
Q 2.946161723359364 1.6114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1329  
   data-arc span      23504 days (64.35 yr)  
   first obs. used      1951-12-01  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51585  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:06:52  

Additional Information
 Earth MOID = 1.32016 au 
 Jupiter MOID = 2.17942 au 
 T_jup = 3.390 
[ 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 13.5 mag n/a MPO350881  

9953 (1991 EB)          Discovered 1991-Mar-07 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 EB = 1985 XJ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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