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6474 Choate (1987 SG1)
Classification: Main-belt Asteroid          SPK-ID: 2006474
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2999939059727439 2.9664e-08  
a 2.563882345832087 1.2221e-08 au
q 1.794733266451358 7.5097e-08 au
i 12.27084137775891 6.2425e-06 deg
node 175.3681008388479 1.8908e-05 deg
peri 120.1025764361756 2.5573e-05 deg
M 281.9365200736713 2.0228e-05 deg
tp 2458925.655400379498
(2020-Mar-17.15540038)
8.5861e-05 TDB
period 1499.496874173289
4.11
1.0721e-05
2.935e-08
d
yr
n .2400805271424639 1.7166e-09 deg/d
Q 3.333031425212816 1.5887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1208  
   data-arc span      23606 days (64.63 yr)  
   first obs. used      1954-09-23  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:18:46  

Additional Information
 Earth MOID = .814829 au 
 Jupiter MOID = 2.06861 au 
 T_jup = 3.338 
[ 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 14.1   n/a MPO435760  
diameter diameter 8.676 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6474 Choate (1987 SG1)          Discovered 1987-Sep-21 by Bowell, E. at Anderson Mesa
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1987 SG1 = 1954 SP = 1975 XO6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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