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14438 MacLean (1992 HC2)
Classification: Main-belt Asteroid          SPK-ID: 2014438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09678312939342468 4.2421e-08  
a 2.906370027097915 1.5997e-08 au
q 2.625082440700127 1.2433e-07 au
i 3.123818279323191 4.69e-06 deg
node 130.0550962939825 7.6628e-05 deg
peri 231.8438704420526 7.9919e-05 deg
M 107.7172993691257 2.1265e-05 deg
tp 2458458.988428205675
(2018-Dec-06.48842821)
0.00010782 TDB
period 1809.775839049978
4.95
1.4942e-05
4.091e-08
d
yr
n .1989196629948259 1.6423e-09 deg/d
Q 3.187657613495704 1.7545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1646  
   data-arc span      10418 days (28.52 yr)  
   first obs. used      1992-04-27  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53343  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:56:38  

Additional Information
 Earth MOID = 1.62343 au 
 Jupiter MOID = 2.24864 au 
 T_jup = 3.276 
[ 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 13.9   n/a MPO502279  
diameter diameter 4.374 km 0.545 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.306   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14438 MacLean           Discovered 1992 Apr. 27 by Spacewatch at Kitt Peak.
Steven Glenwood MacLean (b. 1954), selected as a Canadian astronaut in 1983, is an expert in laser physics and space vision systems. He flew on space shuttle mission STS-52.
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
 1992 HC2 = 1999 XE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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