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359727 (2011 UU28)
Classification: Main-belt Asteroid          SPK-ID: 2359727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120681072470744 4.4511e-08  
a 2.623495628770975 3.5632e-08 au
q 2.306889362668585 1.283e-07 au
i 13.98884162747245 1.0577e-05 deg
node 27.47872704967925 2.4011e-05 deg
peri 52.52097559103412 7.2198e-05 deg
M 338.9148241264664 6.6062e-05 deg
tp 2459091.406235015795
(2020-Aug-29.90623502)
0.00028587 TDB
period 1552.097302957033
4.25
3.162e-05
8.657e-08
d
yr
n .2319442210962762 4.7253e-09 deg/d
Q 2.940101894873365 3.9932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      8686 days (23.78 yr)  
   first obs. used      1996-04-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:45:52  

Additional Information
 Earth MOID = 1.34746 au 
 Jupiter MOID = 2.41565 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457663.5 (2016-Oct-02.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118752200187432 4.4552e-08  
q 2.312140235155383 1.2874e-07 au
tp 2457535.733136677241
(2016-May-27.23313668)
0.00027613 TDB
node 27.51845218154813 2.3981e-05 deg
peri 51.86332561095205 7.3664e-05 deg
i 13.99916906945309 1.0588e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      8686 days (23.78 yr)  
   first obs. used      1996-04-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:45:52  

Additional Information
 Jupiter MOID = 2.41565 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.9848862938241E-15 -5.571865335219868E-15 -3.463640693101741E-12 1.924651114768045E-14 -7.874975915485961E-13 -8.212021470290723E-15
q -5.571865335219868E-15 1.657526812877574E-14 1.339319029829203E-11 -6.913996787586003E-14 3.145527790680756E-12 2.891793667806098E-14
tp -3.463640693101741E-12 1.339319029829203E-11 7.624965859933341E-8 -2.724618941492894E-10 1.926254262086668E-8 8.40064836513004E-11
node 1.924651114768045E-14 -6.913996787586003E-14 -2.724618941492894E-10 5.750941648648914E-10 -6.249033289730641E-10 -1.565249566523466E-10
peri -7.874975915485961E-13 3.145527790680756E-12 1.926254262086668E-8 -6.249033289730641E-10 5.426370271327342E-9 1.724569145024929E-10
i -8.212021470290723E-15 2.891793667806098E-14 8.40064836513004E-11 -1.565249566523466E-10 1.724569145024929E-10 1.121091504800889E-10

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 16.4   n/a MPO455596  
diameter diameter 3.307 km 0.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

359727 (2011 UU28)          Discovered 2009-Apr-01 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Alternate Designations
 2011 UU28 = 2009 HA90 = 2010 HA12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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