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JPL Small-Body Database Browser
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12050 Humecronyn (1997 HE14)
Classification: Main-belt Asteroid          SPK-ID: 2012050
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08556743515133981 4.9873e-08  
a 2.913882382245015 1.2831e-08 au
q 2.664548940463633 1.4615e-07 au
i 1.227811311485295 3.302e-06 deg
node 312.7519966592015 0.00020303 deg
peri 57.60759152495353 0.00020384 deg
M 58.13750418967365 1.7633e-05 deg
tp 2458707.099846713650
(2019-Aug-11.59984671)
8.9163e-05 TDB
period 1816.797206128548
4.97
1.2001e-05
3.286e-08
d
yr
n .1981508991678447 1.3089e-09 deg/d
Q 3.163215824026397 1.3929e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2311  
   data-arc span      16537 days (45.28 yr)  
   first obs. used      1974-09-19  
   last obs. used      2019-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47606  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:41:45  

Additional Information
 Earth MOID = 1.6642 au 
 Jupiter MOID = 2.28883 au 
 T_jup = 3.277 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO332933  
diameter diameter 6.947 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ show close-approach data ]
Alternate Designations
 1997 HE14 = 1974 SC1 = 1979 SM8 = 1989 ST14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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