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12050 Humecronyn (1997 HE14)
Classification: Main-belt Asteroid          SPK-ID: 2012050
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0863773663698254 9.1627e-08  
a 2.914099797622935 3.2216e-08 AU
q 2.662387531765425 2.6706e-07 AU
i 1.232886215994295 6.7933e-06 deg
node 313.2885932214718 0.00031989 deg
peri 54.3666260093857 0.00032159 deg
M 265.8452175443907 4.0094e-05 deg
tp 2456875.720253324745
(2014-Aug-06.22025332)		 0.00020583 JED
period 1817.000546706868
4.97		 3.0131e-05
8.249e-08		 d
yr
n .1981287240955783 3.2855e-09 deg/d
Q 3.165812063480446 3.4998e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      14089 days (38.57 yr)  
   first obs. used      1974-09-19  
   last obs. used      2013-04-16  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .5131  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:47:02  

Additional Information
 Earth MOID = 1.66069 AU 
 T_jup = 3.276 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a PDS3 (MPC 36286)  

12050 Humecronyn           Discovered 1997 Apr. 27 by Spacewatch at Kitt Peak.
Through the efforts of Hume Blake Cronyn (1864-1933), Canada's National Research Council was established in 1920. After his death, his widow donated funds for the construction of the Hume Cronyn Memorial Observatory at the University of Western Ontario in London.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1997 HE14 = 1974 SC1 = 1979 SM8 = 1989 ST14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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