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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955215260760936 7.7678e-08  
a 2.271159476195237 1.711e-08 AU
q 1.827098909447363 1.8041e-07 AU
i 7.24973471307322 8.7851e-06 deg
node 20.71339867196218 5.3735e-05 deg
peri 297.4881791329158 5.7083e-05 deg
M 259.9416049265164 2.5344e-05 deg
tp 2457147.972872500313
(2015-May-05.47287250)
9.0739e-05 JED
period 1250.172301966722
3.42
1.4127e-05
3.868e-08
d
yr
n .2879603070981992 3.254e-09 deg/d
Q 2.715220042943111 2.0455e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1991-09-11  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59102  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:04:51  

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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