Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09678312648211912 4.2756e-08  
a 2.906370028283874 1.6128e-08 au
q 2.625082450232636 1.2552e-07 au
i 3.123818201909688 4.6991e-06 deg
node 130.0550937479855 7.7138e-05 deg
peri 231.8438718174418 8.0438e-05 deg
M 107.7173000154741 2.1317e-05 deg
tp 2458458.988424624931
(2018-Dec-06.48842462)		 0.00010811 TDB
period 1809.77584015771
4.95		 1.5064e-05
4.124e-08		 d
yr
n .1989196628730707 1.6558e-09 deg/d
Q 3.187657606335112 1.7689e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1607  
   data-arc span      10142 days (27.77 yr)  
   first obs. used      1992-04-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:57:35  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-30 13:58 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin