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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0982156245111417 7.4255e-08  
a 2.290214326551945 1.3961e-08 AU
q 2.065279496205282 1.672e-07 AU
i 4.057318624365577 7.4491e-06 deg
node 18.74467976452133 6.5714e-05 deg
peri 338.2555198346778 7.2036e-05 deg
M 199.9178764309576 3.33e-05 deg
tp 2457363.428132943622
(2015-Dec-06.92813294)
0.00011946 JED
period 1265.938527935011
3.47
1.1576e-05
3.169e-08
d
yr
n .2843739976752498 2.6003e-09 deg/d
Q 2.515149156898608 1.5332e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      958  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1991-09-11  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50658  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:55:59  

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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