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11731 (1998 KF47)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603594514030841 2.8469e-08  
a 3.217531471742487 1.7911e-08 au
q 2.701569890061704 9.594e-08 au
i 2.521237341729416 3.4577e-06 deg
node 121.5683229888759 8.2532e-05 deg
peri 148.614351757744 8.3349e-05 deg
M 270.3464385968609 1.2043e-05 deg
tp 2459525.485946304027
(2021-Nov-06.98594630)
7.1195e-05 TDB
period 2108.058371709398
5.77
1.7602e-05
4.819e-08
d
yr
n .1707732598068812 1.4259e-09 deg/d
Q 3.733493053423271 2.0783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2295  
   data-arc span      15067 days (41.25 yr)  
   first obs. used      1979-01-27  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50131  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:36:12  

Additional Information
 Earth MOID = 1.68582 au 
 Jupiter MOID = 1.37336 au 
 T_jup = 3.168 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO384860  
diameter diameter 14.766 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11731 (1998 KF47)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 KF47 = 1979 BP2 = 1986 GW2 = 1991 EU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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