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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1219107708604065 4.7413e-08  
a 2.625199273228632 1.8594e-08 AU
q 2.305159206167151 1.2311e-07 AU
i 2.831729020943231 5.1204e-06 deg
node 255.9363784035535 0.00012694 deg
peri 210.9655834891846 0.00012996 deg
M 215.8877921284339 2.7455e-05 deg
tp 2457422.428001747184
(2016-Feb-03.92800175)
0.00012003 JED
period 1553.609398785441
4.25
1.6506e-05
4.519e-08
d
yr
n .2317184745930578 2.4618e-09 deg/d
Q 2.945239340290113 2.0861e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      22851 days (62.56 yr)  
   first obs. used      1951-12-01  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:23:00  

Additional Information
 Earth MOID = 1.32215 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 13.4 mag n/a MPO266011  

9953 (1991 EB)          Discovered 1991-Mar-07 by Ueda, S., Kaneda, H. at Kushiro (399)
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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