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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1387690063144144 2.8176e-08  
a 2.15487645613201 5.5366e-09 au
q 1.855846391584244 5.8963e-08 au
i 2.764644589908996 3.0446e-06 deg
node 178.3358055492465 8.6173e-05 deg
peri 351.6533099462198 8.7776e-05 deg
M 175.0664966887614 1.7772e-05 deg
tp 2458438.634286228530
(2018-Nov-16.13428623)
5.614e-05 TDB
period 1155.399009996379
3.16
4.4529e-06
1.219e-08
d
yr
n .3115806720321911 1.2008e-09 deg/d
Q 2.453906520679776 6.3049e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1934  
   data-arc span      12213 days (33.44 yr)  
   first obs. used      1987-02-23  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:58:07  

Additional Information
 Earth MOID = .861815 au 
 Jupiter MOID = 2.51317 au 
 T_jup = 3.688 
[ 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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