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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09714657717880819 4.2162e-08  
a 2.905657693538058 1.356e-08 au
q 2.623382994157565 1.2249e-07 au
i 3.124079191675249 4.481e-06 deg
node 130.0564278033477 7.1257e-05 deg
peri 231.8797191193482 7.3578e-05 deg
M 186.4374903950049 1.8831e-05 deg
tp 2460268.704900383973
(2023-Nov-20.20490038)
9.55e-05 TDB
period 1809.110532296623
4.95
1.2664e-05
3.467e-08
d
yr
n .1989928163996639 1.393e-09 deg/d
Q 3.187932392918551 1.4878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1866  
   data-arc span      10633 days (29.11 yr)  
   first obs. used      1992-04-27  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:17:24  

Additional Information
 Earth MOID = 1.62092 au 
 Jupiter MOID = 2.24886 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 13.85   n/a MPCxxxxx  
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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