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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 ]

[ show orbit diagram ]
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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1913-Oct-15 12:14 00:01 Thisb 0.0489556045015797 0.0489407386518713 0.0489704704340454 3.27971944001981 3.27971939755437 2420056.009688392 1.10771282196779 747.261667026162 44.0177606151324 -7.67219863522427 24221.1056897416 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:56:09 2020-Nov-13 02:56
2115-Aug-25 11:33 00:27 Amphi 0.0374153905208095 0.0374016672112706 0.0374291138494433 1.22729806990417 1.22729794471328 2493783.981548067 26.6172984114824 679.844973593649 34.2090184288368 1.03581313247897 8699.31542028309 T 32 CATAB v2.0f-lin.ifort 2020-Nov-13 02:56:09 2020-Nov-13 02:56

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