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

[ show orbit diagram ]
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
(1952-Jan-02.21456317)
15.121 TDB
period 110738.8794424571
303.19
18.436
0.05048
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456787.5 (2014-May-10.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .072456442157707 7.7752e-05  
q 41.763941844363 0.00527 au
tp 2433635.387630871435
(1950-Dec-19.88763087)
16.491 TDB
node 111.0033033969446 0.020039 deg
peri 182.2979359943402 0.07079 deg
i 1.840990131330085 4.9369e-05 deg
  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
 Jupiter MOID = 36.4441 au 
 T_jup = 5.984 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.04535015687943E-9 -2.07508996132284E-7 4.455915190710103E-5 5.404450514601029E-9 -3.714072150437954E-7 2.563569929007995E-11
q -2.07508996132284E-7 2.777322440536451E-5 .07312395320471726 -5.806693947204754E-7 .0003198832297742357 1.594223429975039E-9
tp 4.455915190710103E-5 .07312395320471726 271.9435463519793 -.001370995675516583 1.1133628317982 8.957175244055459E-6
node 5.404450514601029E-9 -5.806693947204754E-7 -.001370995675516583 .0004015506245757632 -.000407481073933691 8.976748389228275E-7
peri -3.714072150437954E-7 .0003198832297742357 1.1133628317982 -.000407481073933691 .005011199468806889 -8.626007497877391E-7
i 2.563569929007995E-11 1.594223429975039E-9 8.957175244055459E-6 8.976748389228275E-7 -8.626007497877391E-7 2.437316463856257E-9

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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