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80012 (1999 GT4)
Classification: Main-belt Asteroid          SPK-ID: 2080012
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398120704693869 3.5147e-08  
a 3.097971317517488 2.1785e-08 au
q 2.664837533360594 1.0904e-07 au
i 1.838194654174095 5.0474e-06 deg
node 48.1324277140974 0.00013474 deg
peri 214.3126198843846 0.00013604 deg
M 202.8485820915679 1.9784e-05 deg
tp 2459469.921385963857
(2021-Sep-12.42138596)
0.00011098 TDB
period 1991.656856251596
5.45
2.1009e-05
5.752e-08
d
yr
n .1807540284211102 1.9066e-09 deg/d
Q 3.531105101674382 2.4831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1115  
   data-arc span      7212 days (19.75 yr)  
   first obs. used      1999-04-11  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:35:45  

Additional Information
 Earth MOID = 1.64917 au 
 Jupiter MOID = 1.54142 au 
 T_jup = 3.207 
[ 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 14.0   n/a MPO436340  
diameter diameter 7.836 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80012 (1999 GT4)          Discovered 1999-Apr-11 by Juels, C. W. at Fountain Hills
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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