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312431 (2008 GC123)
Classification: Main-belt Asteroid          SPK-ID: 2312431
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01462114884708295 6.1339e-08  
a 2.77734343818359 3.3843e-08 au
q 2.736735486374439 1.7671e-07 au
i 5.34076086025612 6.8534e-06 deg
node 123.0430196383391 6.9541e-05 deg
peri 89.38351069702304 0.00027071 deg
M 116.4293073380847 0.00026406 deg
tp 2458053.732590944393
(2017-Oct-27.23259094)
0.0012387 TDB
period 1690.607560589965
4.63
3.0901e-05
8.46e-08
d
yr
n .2129411984141205 3.8921e-09 deg/d
Q 2.817951389992742 3.4337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      6112 days (16.73 yr)  
   first obs. used      2003-01-28  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66468  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:02  

Additional Information
 Earth MOID = 1.73442 au 
 Jupiter MOID = 2.15401 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO460290  
diameter diameter 3.348 km 0.921 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.025   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312431 (2008 GC123)          Discovered 2008-Apr-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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