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JPL Small-Body Database Browser
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14146 Hughmaclean (1998 SP42)
Classification: Main-belt Asteroid          SPK-ID: 2014146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209921879265633 3.0588e-08  
a 2.315372420370529 6.8354e-09 au
q 2.035230445365076 7.1899e-08 au
i 2.090023451866318 4.4524e-06 deg
node 350.9984685737473 8.9325e-05 deg
peri 72.81393271576101 9.1117e-05 deg
M 252.2211827206861 1.8448e-05 deg
tp 2458985.765946351182
(2020-May-16.26594635)
6.6301e-05 TDB
period 1286.855285551975
3.52
5.6986e-06
1.56e-08
d
yr
n .279751735911458 1.2388e-09 deg/d
Q 2.595514395375982 7.6625e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      25515 days (69.86 yr)  
   first obs. used      1949-12-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5439  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:47:05  

Additional Information
 Earth MOID = 1.04929 au 
 Jupiter MOID = 2.67064 au 
 T_jup = 3.571 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO435834  
diameter diameter 2.770 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14146 Hughmaclean           Discovered 1998 Sept. 28 by Spacewatch at Kitt Peak.
Hugh Noel Alexander Maclean (b. 1915) is an amateur astronomer in St. Catharines, Ontario, who helped found the Royal Astronomical Society of Canada, Niagara Centre, in 1960, and was president of the Niagara Centre during 1966-1968 and 1978-1979. He was employed as a shipping foreman.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1998 SP42 = 1989 AF2 = 1993 FW58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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