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26838 (1991 RC9)
Classification: Main-belt Asteroid          SPK-ID: 2026838
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09806065863134608 5.6525e-08  
a 2.290411673709061 1.146e-08 au
q 2.065812396448227 1.3161e-07 au
i 4.057128837445924 6.2401e-06 deg
node 18.73755341629123 6.3508e-05 deg
peri 338.0173103640138 6.7722e-05 deg
M 67.6035136944151 2.4048e-05 deg
tp 2457362.741792496954
(2015-Dec-06.24179250)
8.4324e-05 JED
period 1266.102159837404
3.47
9.5027e-06
2.602e-08
d
yr
n .2843372449867964 2.1341e-09 deg/d
Q 2.515010950969895 1.2584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      8881 days (24.31 yr)  
   first obs. used      1991-09-11  
   last obs. used      2016-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50403  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 20:45:27  

Additional Information
 Earth MOID = 1.06124 au 
 Jupiter MOID = 2.85448 au 
 T_jup = 3.589 
[ 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 14.6 mag n/a MPO347723  

26838 (1991 RC9)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RC9 = 1998 SJ159 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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