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4301 Boyden (1966 PM)
Classification: Main-belt Asteroid          SPK-ID: 2004301
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122622624506191 6.9453e-08  
a 3.111790796166001 2.8982e-08 AU
q 2.762454121115392 2.1394e-07 AU
i 2.285157576699894 6.0601e-06 deg
node 52.15809935361306 0.00015272 deg
peri 100.4443139642373 0.00015539 deg
M 66.0691000864737 2.854e-05 deg
tp 2456432.532124436817
(2013-May-20.03212444)
0.00015846 JED
period 2004.9983279531
5.49
2.801e-05
7.669e-08
d
yr
n .1795512719292507 2.5084e-09 deg/d
Q 3.461127471216609 3.2235e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      22763 days (62.32 yr)  
   first obs. used      1951-11-28  
   last obs. used      2014-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:45:53  

Additional Information
 Earth MOID = 1.77435 AU 
 T_jup = 3.208 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5 mag n/a MPO263385  

4301 Boyden           Discovered 1966 Aug. 7 at Bloemfontein.
Massachusetts mechanical engineer Uriah Atherton Boyden (1804-1879) designed an improved turbine waterwheel for use in textile mills. His bequest to build a new observatory at a mountain site allowed the Harvard College Observatory to establish the Boyden Observatory at Arequipa. It moved to Bloemfontein in 1927.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

[ show close-approach data ]
Alternate Designations
 1966 PM = 1975 EE2 = 1978 TL2 = 1979 YZ7 = 1986 ER 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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