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249229 (2008 GC12)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249229
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02867358261138663 6.4276e-08  
a 3.203291123308923 5.2034e-08 au
q 3.111441290656403 2.0772e-07 au
i 8.446032683203562 7.9836e-06 deg
node 183.4858593080894 5.0131e-05 deg
peri 111.343640902496 0.00018792 deg
M 282.9959546252201 0.0001886 deg
tp 2459448.423742091233
(2021-Aug-21.92374209)
0.0011031 TDB
period 2094.078906738277
5.73
5.1024e-05
1.397e-07
d
yr
n .1719132926851995 4.1888e-09 deg/d
Q 3.295140955961443 5.3526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      9281 days (25.41 yr)  
   first obs. used      1994-11-28  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:42:18  

Additional Information
 Earth MOID = 2.10926 au 
 Jupiter MOID = 1.76323 au 
 T_jup = 3.176 
[ 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 16.1   n/a MPO470659  
diameter diameter 3.600 km 1.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249229 (2008 GC12)          Discovered 2008-Apr-03 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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