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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05385850589364312 3.7489e-08  
a 3.155098077062677 2.3625e-08 au
q 2.985169208684174 1.2344e-07 au
i 8.331355692574906 5.9031e-06 deg
node 201.140526118274 2.8811e-05 deg
peri 274.2971618101109 6.2494e-05 deg
M 1.840849233976761 5.5047e-05 deg
tp 2458990.032729605848
(2020-May-20.53272961)
0.00031299 TDB
period 2046.999435013119
5.60
2.2992e-05
6.295e-08
d
yr
n .1758671711590837 1.9753e-09 deg/d
Q 3.325026945441179 2.4897e-08 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      8765 days (24.00 yr)  
   first obs. used      1996-10-18  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53753  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:46:47  

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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