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JPL Small-Body Database Browser
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58906 (1998 KN18)
Classification: Main-belt Asteroid          SPK-ID: 2058906
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121527003949748 4.1593e-08  
a 3.114506585698182 2.3465e-08 au
q 2.765206261714198 1.2969e-07 au
i 21.22443498014869 4.917e-06 deg
node 236.2191441912835 1.4315e-05 deg
peri 155.2216097624183 2.7976e-05 deg
M 203.0349140727967 2.3946e-05 deg
tp 2459875.852282527967
(2022-Oct-23.35228253)
0.00013624 TDB
period 2007.623668974491
5.50
2.2689e-05
6.212e-08
d
yr
n .1793164752754139 2.0265e-09 deg/d
Q 3.463806909682166 2.6097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1051  
   data-arc span      15713 days (43.02 yr)  
   first obs. used      1976-05-03  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4967  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:14:02  

Additional Information
 Earth MOID = 1.78481 au 
 Jupiter MOID = 1.96173 au 
 T_jup = 3.104 
[ 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 13.2   n/a MPO385195  
diameter diameter 11.025 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58906 (1998 KN18)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2042-Sep-07 08:16 < 00:01 Jupiter 1.98617961754827 1.98617917429422 1.98618006080232 6.03156150653673 5.96043772523305 2467134.844729209 0.856332182647577 145.435753897238 21.7350278110144 89.8510947376056 4496569.97624043 T 22 CATAB v2.0e-lin.ifort 2019-May-30 05:14:08 2019-May-30 05:14
2196-Dec-27 19:50 00:06 Jupiter 1.99875805936329 1.99875673222464 1.99875938659874 5.98360323320561 5.91235645356062 2523494.326662071 5.50123815410899 754.895436287394 24.4793968544051 -85.2539419089389 4421780.99125168 T 22 CATAB v2.0e-lin.ifort 2019-May-30 05:14:08 2019-May-30 05:14

Alternate Designations
 1998 KN18 = 1976 JW6 = 2000 SV100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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