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JPL Small-Body Database Browser
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312844 (2011 UM55)
Classification: Main-belt Asteroid          SPK-ID: 2312844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09264414829093695 1.1646e-07  
a 2.624958061863681 3.2985e-08 au
q 2.381771057922891 3.2065e-07 au
i 11.39226756680041 6.6453e-06 deg
node 53.86522186915131 3.592e-05 deg
peri 304.8418299759095 5.1944e-05 deg
M 320.4525835759869 3.3463e-05 deg
tp 2458771.146583150945
(2019-Oct-14.64658315)
0.0001446 TDB
period 1553.39527810566
4.25
2.928e-05
8.016e-08
d
yr
n .2317504147682321 4.3683e-09 deg/d
Q 2.86814506580447 3.6041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7603 days (20.82 yr)  
   first obs. used      1999-01-07  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57999  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:06  

Additional Information
 Earth MOID = 1.39989 au 
 Jupiter MOID = 2.53792 au 
 T_jup = 3.369 
[ 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 16.2   n/a MPO446477  

312844 (2011 UM55)          Discovered 2006-Jul-18 by Siding Spring Survey at Siding Spring
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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