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JPL Small-Body Database Browser
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136172 (2003 US123)
Classification: Main-belt Asteroid          SPK-ID: 2136172
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493254247898167 4.0326e-08  
a 2.709015302643388 2.5039e-08 au
q 2.30449044181405 1.1876e-07 au
i 10.11228598852348 8.134e-06 deg
node 214.26597249 2.3264e-05 deg
peri 84.91255575168823 3.6059e-05 deg
M 257.1605388671525 2.8247e-05 deg
tp 2459065.735563724690
(2020-Aug-04.23556372)
0.00013019 TDB
period 1628.604439345829
4.46
2.258e-05
6.182e-08
d
yr
n .221048150982938 3.0647e-09 deg/d
Q 3.113540163472726 2.8779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      8952 days (24.51 yr)  
   first obs. used      1994-10-27  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:39:16  

Additional Information
 Earth MOID = 1.31561 au 
 Jupiter MOID = 2.14703 au 
 T_jup = 3.326 
[ 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 MPO248166  

136172 (2003 US123)          Discovered 2003-Oct-19 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 2003 US123 = 1994 UD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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