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11967 Boyle (1994 PW20)
Classification: Main-belt Asteroid          SPK-ID: 2011967
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02218422796373769 4.3541e-08  
a 2.742988736322718 1.1056e-08 au
q 2.68213764889417 1.1859e-07 au
i 3.910867216264979 4.4489e-06 deg
node 345.54640584 5.4897e-05 deg
peri 207.6609234597306 9.9542e-05 deg
M 26.39350026654992 8.1762e-05 deg
tp 2458878.845283222531
(2020-Jan-30.34528322)
0.00037706 TDB
period 1659.336488059282
4.54
1.0032e-05
2.747e-08
d
yr
n .2169541877675738 1.3117e-09 deg/d
Q 2.803839823751266 1.1301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2110  
   data-arc span      10416 days (28.52 yr)  
   first obs. used      1992-02-01  
   last obs. used      2020-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47599  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:04  

Additional Information
 Earth MOID = 1.68137 au 
 Jupiter MOID = 2.15957 au 
 T_jup = 3.345 
[ 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 13.7   n/a MPO467804  
diameter diameter 4.758 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.341   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11967 Boyle           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory.
Robert Boyle (1627-1691) was a British physicist and philosopher well known for his experiments with gases, leading to the discovery that the volume of a gas is inversely proportional to its pressure. In 1661 he developed the concept of primary particles (the critical chymist).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1994 PW20 = 1997 ES49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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