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3282 Spencer Jones (1949 DA)
Classification: Main-belt Asteroid          SPK-ID: 2003282
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04208794892689188 4.1209e-08  
a 2.189576461495043 5.5897e-09 au
q 2.097421679212115 9.1248e-08 au
i 3.167631810130794 4.4235e-06 deg
node 162.3197557042454 5.4755e-05 deg
peri 19.01176373534882 6.826e-05 deg
M 328.4977273885715 4.137e-05 deg
tp 2459104.056648143441
(2020-Sep-11.55664814)
0.00013605 TDB
period 1183.419170784338
3.24
4.5317e-06
1.241e-08
d
yr
n .3042032856045436 1.1649e-09 deg/d
Q 2.281731243777971 5.825e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2710  
   data-arc span      31809 days (87.09 yr)  
   first obs. used      1933-03-25  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4618  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:52:19  

Additional Information
 Earth MOID = 1.09985 au 
 Jupiter MOID = 2.67438 au 
 T_jup = 3.671 
[ 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 13.4   n/a MPO502184  
diameter diameter 5.228 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.309   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3282 Spencer Jones (1949 DA)          Discovered 1949-Feb-19 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1949 DA = 1933 FL1 = 1933 HN = 1973 SL6 = 1975 EU2 = 1988 DE1 = 9528 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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