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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 
[ 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 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

[ hide close-approach data ]
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
1940-May-31 01:39 00:02 Jupiter 1.68896692908667 1.68896596112218 1.68896789705038 2.27276607834992 2.0402105319287 2429780.568469537 1.8640559461951 60.3438276199553 9.55957387933955 -89.0258849586848 1294665.99948513 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
1950-May-06 01:37 00:02 Jupiter 1.57778327682975 1.57778276360121 1.57778379005981 1.60830351731759 1.23002172052158 2433407.567345197 1.59528517380162 136.109361009595 56.1535990942771 72.3254287867391 2656839.63075571 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2011-Jul-10 02:18 < 00:01 Jupiter 1.65665128283311 1.65665090598316 1.65665165968287 2.13488675631933 1.88020466262521 2455752.595864537 0.204627441100439 61.1795625697772 9.33182247950708 -86.3736455133033 2674275.09628149 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2021-Jun-13 06:13 < 00:01 Jupiter 1.59886148535708 1.5988610385485 1.59886193216556 1.67361667091756 1.31964415030002 2459378.759324176 0.347393265370242 81.8855866515085 39.1632012199264 59.9042368982361 2609694.31070186 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2082-Aug-17 01:46 00:02 Jupiter 1.62780425497068 1.62780343474326 1.62780507519728 2.01114317907755 1.73320614936081 2481723.573512867 1.8809374213146 70.951668184349 18.8465903349044 -83.6985791766884 1366182.64832598 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2092-Jul-20 23:16 00:02 Jupiter 1.62557721412123 1.62557612990268 1.62557829834154 1.76136326514279 1.43536806127253 2485349.469371930 2.14295329216925 153.033737552531 29.7248861125068 72.8214623987422 2540436.59691344 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2153-Sep-26 16:32 00:04 Jupiter 1.60154752777096 1.60154616310626 1.60154889243311 1.90367568809474 1.60194445800448 2507696.188953529 3.68002082575089 87.6816167518892 41.7268802672856 -70.188298497254 872052.640492138 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22
2163-Aug-31 05:01 00:04 Jupiter 1.65721591908262 1.65721398431702 1.65721785385162 1.86713200693554 1.56970011361262 2511321.709241729 3.91146744685231 209.23641895576 20.3384362846214 78.9038026288503 2379079.92458521 T 29 CATAB v2.0e-lin.ifort 2019-May-30 00:21:40 2019-May-30 00:22

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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