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505477 (2013 UM15)
Classification: TransNeptunian Object          SPK-ID: 2505477
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07808071696748627 7.7761e-05  
a 45.13025614994328 0.005009 au
q 41.6064533928294 0.0051854 au
i 1.841031250299267 4.8598e-05 deg
node 110.9153003512275 0.020018 deg
peri 183.2528316396242 0.066205 deg
M 81.22930990945501 0.062506 deg
tp 2434013.714563174664
15.121 TDB
period 110738.8794424571
n .003250890760431306 5.4122e-07 deg/d
Q 48.65405890705716 0.0054001 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      5438 days (14.89 yr)  
   first obs. used      2002-10-05  
   last obs. used      2017-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .14244  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Nov-07 18:25:54  

Additional Information
 Earth MOID = 40.5904 au 
 Jupiter MOID = 36.4441 au 
 T_jup = 5.984 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.9   n/a MPO399500  
rotation period rot_per 6.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Andersen, M.; Benecchi, S.D.; Chen, Y.-T.; Eduardo, M.R.; et al (2018) arXiv:1812.04304.]

505477 (2013 UM15)          Discovered 2013-Aug-02 by Outer Solar System Origins Survey at Mauna Kea
Reference: Last Updated: 2017-11-07
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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