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15228 Ronmiller (1987 DG)
Classification: Main-belt Asteroid          SPK-ID: 2015228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381270707859367 2.8239e-08  
a 2.155591710728007 5.5135e-09 au
q 1.857846141914701 5.9083e-08 au
i 2.76391504002424 3.0516e-06 deg
node 178.3772181987763 8.8011e-05 deg
peri 351.7073143570182 8.9635e-05 deg
M 50.42284083689964 1.7781e-05 deg
tp 2458438.590253173101
(2018-Nov-16.09025317)
5.6856e-05 TDB
period 1155.974314224452
3.16
4.435e-06
1.214e-08
d
yr
n .3114256048513721 1.1948e-09 deg/d
Q 2.453337279541313 6.275e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1904  
   data-arc span      11868 days (32.49 yr)  
   first obs. used      1987-02-23  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5063  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:19:32  

Additional Information
 Earth MOID = .864256 au 
 Jupiter MOID = 2.51506 au 
 T_jup = 3.687 
[ 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 14.8   n/a MPO319274  
diameter diameter 2.410 km 0.462 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.440   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15228 Ronmiller           Discovered 1987 Feb. 23 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Ron Miller (b. 1955) is a forester for the Bureau of Indian Affairs. He maintains woodland areas and cultural resources for Native Americans. He runs sled dogs in Alaska, Colorado and Arizona and is a teacher and mentor for those entering the sport of dog sledding.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1987 DG = 1990 DK5 = 1998 VU12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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