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10338 (1991 RB11)
Classification: Main-belt Asteroid          SPK-ID: 2010338
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496063712025897 5.3843e-08  
a 3.118371499969379 2.5443e-08 AU
q 2.651843255797383 1.6412e-07 AU
i 1.543371278033472 5.961e-06 deg
node 158.1130244474983 0.00019023 deg
peri 244.1868497811561 0.0001919 deg
M 54.30880167879748 2.0374e-05 deg
tp 2456697.070413526411
(2014-Feb-08.57041353)
0.00011382 JED
period 2011.361837378522
5.51
2.4616e-05
6.739e-08
d
yr
n .1789832109319527 2.1905e-09 deg/d
Q 3.584899744141374 2.9249e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1200  
   data-arc span      14404 days (39.44 yr)  
   first obs. used      1975-11-29  
   last obs. used      2015-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50083  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:08:15  

Additional Information
 Earth MOID = 1.66055 AU 
 T_jup = 3.199 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO337345  

10338 (1991 RB11)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
Reference: 19990402/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RB11 = 1975 WR1 = 1980 TJ9 = 1986 WN6 = 1996 QB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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