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JPL Small-Body Database Browser
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58921 (1998 KH58)
Classification: Main-belt Asteroid          SPK-ID: 2058921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2100606773374222 4.8119e-08  
a 3.119889263050029 3.1079e-08 au
q 2.464523211235989 1.5335e-07 au
i 16.99715284342075 7.117e-06 deg
node 35.60713854955656 1.9674e-05 deg
peri 245.3052512084792 2.7776e-05 deg
M 245.7887518244839 2.4403e-05 deg
tp 2459239.077442464990
(2021-Jan-24.57744246)
0.00014233 TDB
period 2012.830460745093
5.51
3.0077e-05
8.235e-08
d
yr
n .1788526192448112 2.6725e-09 deg/d
Q 3.77525531486407 3.7608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1994-10-27  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60661  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:36:51  

Additional Information
 Earth MOID = 1.50419 au 
 Jupiter MOID = 1.58807 au 
 T_jup = 3.116 
[ 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 14.4   n/a MPO468490  
diameter diameter 3.940 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.180   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58921 (1998 KH58)          Discovered 1998-May-21 by Broughton, J. at Reedy Creek
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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