Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .022184224084222 4.5256e-08  
a 2.742988737008666 1.1393e-08 au
q 2.682137660206369 1.2409e-07 au
i 3.910869011946123 4.7996e-06 deg
node 345.5463980437443 5.5554e-05 deg
peri 207.6609367672936 0.00010218 deg
M 26.39349424921176 8.4985e-05 deg
tp 2458878.845310912422
(2020-Jan-30.34531091)
0.00039185 TDB
period 1659.336488681716
4.54
1.0338e-05
2.83e-08
d
yr
n .2169541876861922 1.3517e-09 deg/d
Q 2.803839813810963 1.1646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1927  
   data-arc span      10314 days (28.24 yr)  
   first obs. used      1992-02-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49041  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:38:45  

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

[ show close-approach data ]
Alternate Designations
 1994 PW20 = 1997 ES49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-26 07:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin