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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955641215390345 7.1877e-08  
a 2.271430567816989 1.6561e-08 AU
q 1.827220244184949 1.673e-07 AU
i 7.24937504634465 8.1242e-06 deg
node 20.71174700568592 4.9143e-05 deg
peri 297.4588338742699 5.2679e-05 deg
M 317.5632062522997 2.5381e-05 deg
tp 2457147.896675793995
(2015-May-05.39667579)
8.9311e-05 JED
period 1250.396144471066
3.42
1.3675e-05
3.744e-08
d
yr
n .2879087572301214 3.1487e-09 deg/d
Q 2.715640891449028 1.9799e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      568  
   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      .57415  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:30  

Additional Information
 Earth MOID = .829086 AU 
 T_jup = 3.576 
[ 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 15.0 mag n/a MPO302152  

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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