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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111623329715769 3.6975e-08  
a 3.111435824413819 1.7799e-08 au
q 2.764126997495819 1.101e-07 au
i 2.284583245279569 3.8792e-06 deg
node 52.13835619129591 0.0001022 deg
peri 101.0673726874758 0.00010372 deg
M 28.46679005499001 1.7577e-05 deg
tp 2458441.983054150357
(2018-Nov-19.48305415)
9.7789e-05 TDB
period 2004.65526304987
5.49
1.7202e-05
4.71e-08
d
yr
n .1795819992771716 1.541e-09 deg/d
Q 3.458744651331818 1.9786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1898  
   data-arc span      24636 days (67.45 yr)  
   first obs. used      1951-11-28  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:21:23  

Additional Information
 Earth MOID = 1.7761 au 
 Jupiter MOID = 1.53389 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456252.5 (2012-Nov-21.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .112399508937503 3.6998e-08  
q 2.762176940607403 1.1015e-07 au
tp 2456431.307084595888
(2013-May-18.80708460)
9.7432e-05 TDB
node 52.16182191265637 0.00010215 deg
peri 100.1651684765697 0.00010365 deg
i 2.285450109179211 3.8796e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1898  
   data-arc span      24636 days (67.45 yr)  
   first obs. used      1951-11-28  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:21:23  

Additional Information
 Jupiter MOID = 1.53389 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.368845932418999E-15 -4.039074864068823E-15 -9.987800621227974E-14 -3.931635688179416E-15 -1.187533674605449E-14 9.904968435730701E-17
q -4.039074864068823E-15 1.21320261712304E-14 1.827672078942759E-13 6.607580943032951E-15 1.444206596169405E-14 -4.231629504120636E-16
tp -9.987800621227974E-14 1.827672078942759E-13 9.492922375071721E-9 -4.525464853828937E-12 1.73288234470222E-9 1.04333476235208E-13
node -3.931635688179416E-15 6.607580943032951E-15 -4.525464853828937E-12 1.043505511860031E-8 -1.04279125386544E-8 -1.482510823262246E-12
peri -1.187533674605449E-14 1.444206596169405E-14 1.73288234470222E-9 -1.04279125386544E-8 1.074348685256567E-8 1.484022088119638E-12
i 9.904968435730701E-17 -4.231629504120636E-16 1.04333476235208E-13 -1.482510823262246E-12 1.484022088119638E-12 1.50515210172414E-11

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 12.6   n/a MPO473825  
diameter diameter 13.931 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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