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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2102921218043753 4.487e-08  
a 3.119326579460502 2.1938e-08 au
q 2.463356774464969 1.4872e-07 au
i 16.99850299723138 7.0031e-06 deg
node 35.6016919059273 1.3941e-05 deg
peri 245.3767602332382 2.1905e-05 deg
M 317.2982784715683 1.7231e-05 deg
tp 2459239.189095574907
(2021-Jan-24.68909557)
9.6936e-05 TDB
period 2012.28595314954
5.51
2.1229e-05
5.812e-08
d
yr
n .1789010152540915 1.8873e-09 deg/d
Q 3.775296384456036 2.6552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      9372 days (25.66 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:58  

Additional Information
 Earth MOID = 1.50353 au 
 Jupiter MOID = 1.58914 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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