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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1121268783787169 5.0459e-08  
a 3.113366416145036 2.7311e-08 au
q 2.76427435865356 1.4596e-07 au
i 2.284712830346049 4.813e-06 deg
node 52.14323613029966 0.000124 deg
peri 100.7679158360345 0.00012599 deg
M 209.2915758400468 2.3837e-05 deg
tp 2458440.499078144533
(2018-Nov-17.99907814)
0.00013663 JED
period 2006.521332948731
5.49
2.6402e-05
7.228e-08
d
yr
n .1794149875650479 2.3608e-09 deg/d
Q 3.462458473636512 3.0373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1341  
   data-arc span      23341 days (63.90 yr)  
   first obs. used      1951-11-28  
   last obs. used      2015-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5077  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:46:06  

Additional Information
 Earth MOID = 1.77478 au 
 Jupiter MOID = 1.5339 au 
 T_jup = 3.207 
[ 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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