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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04188311646865002 2.1988e-08  
a 2.189458827183943 5.2232e-09 au
q 2.097757468121684 4.886e-08 au
i 3.167888152749353 9.7079e-07 deg
node 162.3179547049284 1.7876e-05 deg
peri 19.2129929783287 3.2292e-05 deg
M 88.7910957825998 2.83e-05 deg
tp 2459104.642729979203
(2020-Sep-12.14272998)
9.2662e-05 TDB
period 1183.3238038276
3.24
4.2344e-06
1.159e-08
d
yr
n .3042278020906347 1.0886e-09 deg/d
Q 2.281160186246201 5.4419e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2844  
   data-arc span      32231 days (88.24 yr)  
   first obs. used      1933-03-25  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:21:18  

Additional Information
 Earth MOID = 1.10091 au 
 Jupiter MOID = 2.67292 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 13.43   n/a E2021B10  
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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