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JPL Small-Body Database Browser
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11028 (1987 UW)
Classification: Main-belt Asteroid          SPK-ID: 2011028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650840234452012 4.1175e-08  
a 2.629265136847941 1.2982e-08 au
q 2.195215469352886 1.0708e-07 au
i 32.22588824721042 5.6034e-06 deg
node 206.0390160447245 8.8299e-06 deg
peri 158.9139902850174 1.9303e-05 deg
M 255.1047245325031 1.8165e-05 deg
tp 2459454.236198589628
(2021-Aug-27.73619859)
8.0002e-05 TDB
period 1557.220101327447
4.26
1.1533e-05
3.158e-08
d
yr
n .2311811924936746 1.7121e-09 deg/d
Q 3.063314804342997 1.5125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      14647 days (40.10 yr)  
   first obs. used      1979-12-20  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:55:07  

Additional Information
 Earth MOID = 1.2109 au 
 Jupiter MOID = 2.43238 au 
 T_jup = 3.165 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO384854  
diameter diameter 4.358 km 0.709 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11028 (1987 UW)          Discovered 1987-Oct-18 by Mueller, J. at Palomar
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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