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216472 (1999 JQ108)
Classification: Main-belt Asteroid          SPK-ID: 2216472
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196757501675627 5.51e-08  
a 3.187666041986955 2.8282e-08 au
q 2.487413112929806 1.8668e-07 au
i 27.14441548272089 5.6263e-06 deg
node 52.47550489180193 1.0088e-05 deg
peri 112.567670803066 1.9693e-05 deg
M 328.1347300710303 1.2623e-05 deg
tp 2459384.502088195950
(2021-Jun-19.00208820)
7.268e-05 TDB
period 2078.775792522644
5.69
2.7665e-05
7.574e-08
d
yr
n .1731788494434656 2.3047e-09 deg/d
Q 3.887918971044105 3.4495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      7998 days (21.90 yr)  
   first obs. used      1999-04-14  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5505  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:57  

Additional Information
 Earth MOID = 1.60767 au 
 Jupiter MOID = 1.51789 au 
 T_jup = 2.991 
[ 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 15.17   n/a MPCxxxxx  
diameter diameter 6.103 km 0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216472 (1999 JQ108)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 1999 JQ108 = 2008 UZ74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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