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305538 (2008 GR82)
Classification: Main-belt Asteroid          SPK-ID: 2305538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03379193156116551 9.0163e-08  
a 3.198317249917016 5.7886e-08 au
q 3.090239932296925 3.0007e-07 au
i 11.0260254791636 9.7366e-06 deg
node 48.65928870764875 4.1177e-05 deg
peri 128.8168946676927 0.00013739 deg
M 357.6666643966743 0.00012718 deg
tp 2458614.041146744188
(2019-May-10.54114674)
0.00073806 TDB
period 2089.203465185066
5.72
5.6718e-05
1.553e-07
d
yr
n .172314475827327 4.678e-09 deg/d
Q 3.306394567537107 5.9842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      4959 days (13.58 yr)  
   first obs. used      2005-10-30  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56969  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:51  

Additional Information
 Earth MOID = 2.1023 au 
 Jupiter MOID = 1.68228 au 
 T_jup = 3.165 
[ 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 15.5   n/a MPO433970  
diameter diameter 5.814 km 1.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.027   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305538 (2008 GR82)          Discovered 2008-Apr-08 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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