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101486 (1998 WJ38)
Classification: Main-belt Asteroid          SPK-ID: 2101486
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 .07777625220530314 4.5928e-08  
a 3.075769909750828 2.6009e-08 au
q 2.836548053524565 1.496e-07 au
i 7.093092220410458 5.0046e-06 deg
node 56.5851501516299 4.2086e-05 deg
peri 353.6802308383221 5.6093e-05 deg
M 355.3167813540259 3.5772e-05 deg
tp 2459026.131329058458
(2020-Jun-25.63132906)
0.00019582 TDB
period 1970.285642968476
5.39
2.4991e-05
6.842e-08
d
yr
n .1827146237829841 2.3176e-09 deg/d
Q 3.314991765977091 2.8032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      8019 days (21.95 yr)  
   first obs. used      1998-11-15  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55892  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:20  

Additional Information
 Earth MOID = 1.84724 au 
 Jupiter MOID = 2.01662 au 
 T_jup = 3.213 
[ 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 15.1   n/a MPO493570  
diameter diameter 6.507 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101486 (1998 WJ38)          Discovered 1998-Nov-21 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 WJ38 = 2003 SZ232 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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