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13969 (1991 RK26)
Classification: Main-belt Asteroid          SPK-ID: 2013969
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955590951667951 5.6543e-08  
a 2.27110346373774 1.0466e-08 au
q 1.826968525339013 1.2519e-07 au
i 7.249725007176028 7.5306e-06 deg
node 20.70827828571424 3.6776e-05 deg
peri 297.3742736740464 4.0962e-05 deg
M 130.396874985818 1.9803e-05 deg
tp 2457147.687414608405
(2015-May-05.18741461)
6.728e-05 JED
period 1250.126053701083
3.42
8.6416e-06
2.366e-08
d
yr
n .2879709601557344 1.9906e-09 deg/d
Q 2.715238402136467 1.2513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      8936 days (24.47 yr)  
   first obs. used      1991-09-11  
   last obs. used      2016-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55749  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:18:36  

Additional Information
 Earth MOID = .827505 au 
 Jupiter MOID = 2.61062 au 
 T_jup = 3.577 
[ 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 15.2 mag n/a MPO350914  

13969 (1991 RK26)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RK26 = 1997 GU18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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