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59498 (1999 JG8)
Classification: Main-belt Asteroid          SPK-ID: 2059498
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09999904414143385 5.5196e-08  
a 2.470243341452203 1.3709e-08 au
q 2.223221368510242 1.3593e-07 au
i 24.38463297511445 6.0386e-06 deg
node 201.1631100002539 1.1793e-05 deg
peri 331.5447200230118 2.6863e-05 deg
M 210.6160208983132 2.5222e-05 deg
tp 2459588.949984216390
(2022-Jan-09.44998422)
9.99e-05 TDB
period 1418.103839459906
3.88
1.1805e-05
3.232e-08
d
yr
n .2538601123434715 2.1133e-09 deg/d
Q 2.717265314394165 1.508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      7522 days (20.59 yr)  
   first obs. used      1999-03-24  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45907  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:22:51  

Additional Information
 Earth MOID = 1.23854 au 
 Jupiter MOID = 2.27272 au 
 T_jup = 3.355 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO449383  
diameter diameter 3.637 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59498 (1999 JG8)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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