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108321 (2001 JG8)
Classification: Main-belt Asteroid          SPK-ID: 2108321
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1016772770496025 5.2481e-08  
a 2.740889521586726 2.0172e-08 au
q 2.462203338338 1.5181e-07 au
i 9.513166288079248 5.8686e-06 deg
node 64.22884933240621 3.1714e-05 deg
peri 213.9599465904948 4.661e-05 deg
M 30.17538102315653 3.7357e-05 deg
tp 2458861.573215304267
(2020-Jan-13.07321530)
0.00017148 TDB
period 1657.432012277942
4.54
1.8297e-05
5.009e-08
d
yr
n .2172034794387875 2.3978e-09 deg/d
Q 3.019575704835452 2.2223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      6589 days (18.04 yr)  
   first obs. used      2001-04-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60802  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:45:17  

Additional Information
 Earth MOID = 1.45232 au 
 Jupiter MOID = 2.07886 au 
 T_jup = 3.323 
[ 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 15.4   n/a MPO395949  
diameter diameter 2.451 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108321 (2001 JG8)          Discovered 2001-May-15 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 JG8 = 2002 RL133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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