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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02836373327329394 6.8597e-08  
a 3.204215254216836 5.6166e-08 au
q 3.11333174739601 2.1752e-07 au
i 8.444785926833417 8.3288e-06 deg
node 183.4876471114227 5.1181e-05 deg
peri 110.9165175300145 0.00019701 deg
M 214.6475226641332 0.00019777 deg
tp 2459446.364677598604
(2021-Aug-19.86467760)
0.0011639 TDB
period 2094.985166519465
5.74
5.5084e-05
1.508e-07
d
yr
n .1718389255223661 4.5182e-09 deg/d
Q 3.295098761037662 5.7759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      8841 days (24.21 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64456  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:46:17  

Additional Information
 Earth MOID = 2.11045 au 
 Jupiter MOID = 1.76251 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 16.2   n/a MPO433633  
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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