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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03394147157012159 9.0793e-08  
a 3.199841464352513 5.6776e-08 au
q 3.091234136261296 3.0139e-07 au
i 11.02341964646867 9.734e-06 deg
node 48.65795468555171 4.1186e-05 deg
peri 129.7869524678393 0.00013594 deg
M 65.64160599594615 0.00012549 deg
tp 2458619.286899553797
(2019-May-15.78689955)
0.00072971 TDB
period 2090.69711318624
5.72
5.5644e-05
1.523e-07
d
yr
n .172191369916495 4.5829e-09 deg/d
Q 3.30844879244373 5.8703e-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 = 2.10234 au 
 Jupiter MOID = 1.67852 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 15.6   n/a MPO476361  
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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