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15204 (1978 UG)
Classification: Main-belt Asteroid          SPK-ID: 2015204
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021566526435889 3.9348e-08  
a 2.43463122628201 9.4389e-09 au
q 1.942454327155283 9.7939e-08 au
i 3.270370893721203 4.6261e-06 deg
node 45.9320172079679 5.0329e-05 deg
peri 316.9462341842005 5.1192e-05 deg
M .1337435830763396 8.4144e-06 deg
tp 2458999.984511878690
(2020-May-30.48451188)
3.2431e-05 TDB
period 1387.548616562055
3.80
8.0692e-06
2.209e-08
d
yr
n .2594503685874273 1.5088e-09 deg/d
Q 2.926808125408738 1.1347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1726  
   data-arc span      15282 days (41.84 yr)  
   first obs. used      1978-09-28  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:57:49  

Additional Information
 Earth MOID = .941704 au 
 Jupiter MOID = 2.53053 au 
 T_jup = 3.475 
[ 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 14.3   n/a MPO435842  
diameter diameter 3.139 km 0.761 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.411   0.219 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15204 (1978 UG)          Discovered 1978-Oct-28 by Giclas, H. L. at Anderson Mesa
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 UG = 1992 HX5 = 1996 KU7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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