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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955215149358135 7.879e-08  
a 2.271159472423313 1.7777e-08 AU
q 1.827098931714284 1.8228e-07 AU
i 7.249734349034354 8.7964e-06 deg
node 20.71336773824334 5.8495e-05 deg
peri 297.4882122349373 6.1524e-05 deg
M 259.9416057871676 2.5365e-05 deg
tp 2457147.972868645909
(2015-May-05.47286865)
9.0861e-05 JED
period 1250.172298852308
3.42
1.4678e-05
4.019e-08
d
yr
n .2879603078155625 3.3809e-09 deg/d
Q 2.715220013132342 2.1253e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      8213 days (22.49 yr)  
   first obs. used      1991-09-11  
   last obs. used      2014-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5832  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:02:47  

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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