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JPL Small-Body Database Browser
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359742 (2011 UN56)
Classification: Main-belt Asteroid          SPK-ID: 2359742
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452520128672515 5.6152e-08  
a 2.716088941788238 3.3124e-08 au
q 2.321571555867013 1.5097e-07 au
i 6.487823687234428 7.5929e-06 deg
node 243.9017449093165 5.6143e-05 deg
peri 271.6672873388452 6.2429e-05 deg
M 239.6086154034509 2.8271e-05 deg
tp 2459547.273321899080
(2021-Nov-28.77332190)
0.00013311 TDB
period 1634.987391691737
4.48
2.9909e-05
8.189e-08
d
yr
n .2201851841973561 4.0279e-09 deg/d
Q 3.110606327709462 3.7935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5231 days (14.32 yr)  
   first obs. used      2004-03-16  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55085  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:57:44  

Additional Information
 Earth MOID = 1.34231 au 
 Jupiter MOID = 1.94606 au 
 T_jup = 3.336 
[ 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 16.4   n/a MPO455596  

359742 (2011 UN56)          Discovered 2004-Mar-16 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1903-Apr-04 22:07 00:06 Jupiter 1.95524388425153 1.95524298427275 1.95524478425121 2.03106540553483 1.80521898054016 2416209.421525323 6.23249337019303 425.969786652973 28.5151066458815 89.2271296777768 1939484.82875967 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57
1939-Apr-15 01:12 00:04 Jupiter 1.94322685010978 1.94322619372265 1.94322750649669 2.06980373688278 1.8472461817084 2429368.549890198 4.19154046793605 240.178301761847 22.4386359119249 -78.5001542102605 1534776.52741992 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57
1975-Apr-26 15:32 00:02 Jupiter 1.96476496925309 1.96476411742497 1.96476582108166 2.41555717142345 2.22995602862388 2442529.147220334 2.18697746072086 146.615687692964 19.8358349191977 -85.312808793773 1302858.94042264 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57
2104-Aug-23 08:19 00:05 Jupiter 1.99956662723425 1.99956508283059 1.99956817165109 2.20407821327264 2.00268686428757 2489764.846331785 4.79322317661184 305.108398957275 23.8562063201131 89.5175327748492 1878941.6474858 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57
2140-Sep-05 03:01 00:07 Jupiter 1.94622766313955 1.94622648924241 1.94622883705837 2.01115797714413 1.78166537334616 2502926.625506090 6.75914005853323 387.325386609677 24.064207610682 -84.3296748370321 1880235.40820149 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57
2176-Sep-15 11:29 00:09 Jupiter 1.93911805355366 1.93911744462781 1.93911866247917 2.17537823687604 1.96434575086928 2516085.978446342 8.70562539023985 477.942660115587 26.1078220944093 -76.4164702683327 1424398.0551723 T 12 CATAB v2.0e-lin.ifort 2018-Oct-31 04:57:46 2018-Dec-18 01:57

Alternate Designations
 2011 UN56 = 2004 FB14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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