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59430 (1999 GT12)
Classification: Main-belt Asteroid          SPK-ID: 2059430
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05385850590934759 3.7507e-08  
a 3.155098077046566 2.369e-08 au
q 2.985169208619383 1.2349e-07 au
i 8.331355848391402 5.9277e-06 deg
node 201.1405264833147 2.8818e-05 deg
peri 274.2971609543421 6.264e-05 deg
M 1.840849742919749 5.5248e-05 deg
tp 2458990.032726712022
(2020-May-20.53272671)
0.00031414 TDB
period 2046.999434997441
5.60
2.3055e-05
6.312e-08
d
yr
n .1758671711604308 1.9808e-09 deg/d
Q 3.32502694547375 2.4966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      983  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1996-10-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:47:36  

Additional Information
 Earth MOID = 2.01671 au 
 Jupiter MOID = 1.76461 au 
 T_jup = 3.188 
[ 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 14.3   n/a MPO365937  
diameter diameter 8.724 km 0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59430 (1999 GT12)          Discovered 1999-Apr-12 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GT12 = 2001 QG185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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