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12111 Ulm (1998 LU)
Classification: Main-belt Asteroid          SPK-ID: 2012111
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06620025736020752 5.134e-08  
a 2.561273448357302 1.6093e-08 au
q 2.391716486906183 1.3093e-07 au
i 3.885653810750163 4.8276e-06 deg
node 250.06650346718 8.2918e-05 deg
peri 342.6641220815623 9.3678e-05 deg
M 170.4802535367892 4.4257e-05 deg
tp 2456891.487438251097
(2014-Aug-21.98743825)
0.00018294 JED
period 1497.208720272837
4.10
1.411e-05
3.863e-08
d
yr
n .2404474373715891 2.2661e-09 deg/d
Q 2.730830409808422 1.7158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1136  
   data-arc span      9381 days (25.68 yr)  
   first obs. used      1990-04-29  
   last obs. used      2016-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50177  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:48:28  

Additional Information
 Earth MOID = 1.38051 au 
 Jupiter MOID = 2.2595 au 
 T_jup = 3.428 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO279644  

12111 Ulm           Discovered 1998 June 1 by E. W. Elst at the European Southern Observatory.
Ulm is a city in Germany on the banks of the Donau river. Until World War II it was one of the most beautiful cities remaining from the Middle Ages, with a five-ships cathedral and its 161-m tower. In 1879 the famous physicist Albert Einstein was born there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 LU = 1990 HB7 = 1996 XJ23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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