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58918 (1998 KB54)
Classification: Main-belt Asteroid          SPK-ID: 2058918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06771649537006283 4.2334e-08  
a 2.615460447468535 1.5861e-08 au
q 2.43835063218695 1.0794e-07 au
i 9.724751424275027 4.461e-06 deg
node 154.7413214922954 2.9768e-05 deg
peri 345.8836013220602 4.935e-05 deg
M 80.25016776218497 4.0243e-05 deg
tp 2458256.099232823600
(2018-May-17.59923282)
0.00017178 TDB
period 1544.972174399952
4.23
1.4054e-05
3.848e-08
d
yr
n .2330139053409293 2.1196e-09 deg/d
Q 2.792570262750121 1.6935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      7658 days (20.97 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58643  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:14:04  

Additional Information
 Earth MOID = 1.45216 au 
 Jupiter MOID = 2.20787 au 
 T_jup = 3.384 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436194  
diameter diameter 2.289 km 0.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.405   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58918 (1998 KB54)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KB54 = 1999 RH217 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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