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19498 (1998 KG38)
Classification: Main-belt Asteroid          SPK-ID: 2019498
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09992619867056031 4.3116e-08  
a 2.789969482445582 1.2409e-08 au
q 2.511178437657924 1.1767e-07 au
i 2.888354225042704 4.206e-06 deg
node 173.3641054534363 6.4241e-05 deg
peri 183.3097747809175 6.6479e-05 deg
M 158.6285322663794 1.8913e-05 deg
tp 2458250.473840106018
(2018-May-11.97384011)
8.7919e-05 TDB
period 1702.149126037528
4.66
1.1356e-05
3.109e-08
d
yr
n .2114973326914383 1.4111e-09 deg/d
Q 3.068760527233239 1.3649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2120  
   data-arc span      12667 days (34.68 yr)  
   first obs. used      1985-08-23  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48493  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:02:08  

Additional Information
 Earth MOID = 1.50675 au 
 Jupiter MOID = 2.35224 au 
 T_jup = 3.320 
[ 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 13.7   n/a MPO467927  
diameter diameter 5.373 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19498 (1998 KG38)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KG38 = 1985 QK5 = 1985 RE6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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