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JPL Small-Body Database Browser
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392621 (2011 UM23)
Classification: Main-belt Asteroid          SPK-ID: 2392621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02396560002015619 9.7184e-08  
a 3.092942663676026 6.423e-08 au
q 3.01881843691309 2.9314e-07 au
i 10.62526204376828 1.0742e-05 deg
node 350.5064594849315 4.1203e-05 deg
peri 181.6918675837142 0.0001653 deg
M 70.71209592239771 0.00016022 deg
tp 2458610.245930997814
(2019-May-06.74593100)
0.0008847 TDB
period 1986.80951268886
5.44
6.1889e-05
1.694e-07
d
yr
n .1811950253413031 5.6442e-09 deg/d
Q 3.167066890438962 6.577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      4933 days (13.51 yr)  
   first obs. used      2005-10-01  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:23:00  

Additional Information
 Earth MOID = 2.02389 au 
 Jupiter MOID = 1.80438 au 
 T_jup = 3.197 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO472031  

392621 (2011 UM23)          Discovered 2005-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 UM23 = 2005 UM531 = 2008 CA104 = 2011 SD277 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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