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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456965.5 (2014-Nov-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1126481758233471 4.1591e-08  
q 2.763653580181116 1.2973e-07 au
tp 2457871.973694445544
(2017-Apr-28.47369445)
0.00013059 TDB
node 236.2382967734854 1.4311e-05 deg
peri 155.9966498312303 2.7878e-05 deg
i 21.22784511647556 4.9179e-06 deg
  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
 Jupiter MOID = 1.96173 au 
 T_jup = 3.104 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.7298469825221E-15 -5.324976625897362E-15 1.231967312775199E-13 2.851984139552986E-15 4.791522727716278E-15 -4.865610669513638E-15
q -5.324976625897362E-15 1.682995690460317E-14 -3.866372850175422E-14 -1.046584966922823E-14 1.025813302414812E-14 1.589980406354984E-14
tp 1.231967312775199E-13 -3.866372850175422E-14 1.705473845300428E-8 2.573039214610767E-11 3.154398874271024E-9 5.492718207381572E-12
node 2.851984139552986E-15 -1.046584966922823E-14 2.573039214610767E-11 2.048184791267236E-10 -1.855540262516211E-10 8.396926922214021E-12
peri 4.791522727716278E-15 1.025813302414812E-14 3.154398874271024E-9 -1.855540262516211E-10 7.771800179734713E-10 -6.825180052524358E-12
i -4.865610669513638E-15 1.589980406354984E-14 5.492718207381572E-12 8.396926922214021E-12 -6.825180052524358E-12 2.418583852051808E-11

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

[ show close-approach data ]
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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