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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955215239663577 7.1888e-08  
a 2.271159488030863 1.6588e-08 AU
q 1.827098923760416 1.6729e-07 AU
i 7.249733514242843 8.1248e-06 deg
node 20.71328384214507 4.9193e-05 deg
peri 297.4882862402323 5.2725e-05 deg
M 259.9416008220963 2.4944e-05 deg
tp 2457147.972889469899
(2015-May-05.47288947)
8.9324e-05 JED
period 1250.172311739201
3.42
1.3697e-05
3.75e-08
d
yr
n .2879603048472407 3.1548e-09 deg/d
Q 2.71522005230131 1.9831e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      8272 days (22.65 yr)  
   first obs. used      1991-09-11  
   last obs. used      2014-05-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57839  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:47:48  

Additional Information
 Earth MOID = .827146 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 14.9 mag n/a MPO250350  

13969 (1991 RK26)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar (675)
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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