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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09821562140131192 7.4291e-08  
a 2.29021431697947 1.4477e-08 AU
q 2.06527949469515 1.6706e-07 AU
i 4.057336227592588 7.5717e-06 deg
node 18.7447030565074 7.2725e-05 deg
peri 338.255532652641 7.9174e-05 deg
M 199.9178485192519 3.5079e-05 deg
tp 2457363.428227565690
(2015-Dec-06.92822757)
0.0001257 JED
period 1265.938519998092
3.47
1.2004e-05
3.287e-08
d
yr
n .2843739994581591 2.6965e-09 deg/d
Q 2.51514913926379 1.5899e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1991-09-11  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52608  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:24:36  

Additional Information
 Earth MOID = 1.06042 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 14.5 mag n/a PDS3 (MPO 14473)  

26838 (1991 RC9)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar (675)
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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