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JPL Small-Body Database Browser
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390055 (2012 UZ81)
Classification: Main-belt Asteroid          SPK-ID: 2390055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07009918622196604 7.157e-08  
a 2.729998284529354 3.9842e-08 au
q 2.538627626396483 1.9534e-07 au
i 6.418591224160263 7.2302e-06 deg
node 331.1932017720793 6.5985e-05 deg
peri 31.40706583650497 8.479e-05 deg
M 199.6215043221634 5.7896e-05 deg
tp 2459334.482360579300
(2021-Apr-29.98236058)
0.00027417 TDB
period 1647.562839966603
4.51
3.6067e-05
9.875e-08
d
yr
n .2185045639942312 4.7833e-09 deg/d
Q 2.921368942662225 4.2635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      5167 days (14.15 yr)  
   first obs. used      2005-03-08  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:54:10  

Additional Information
 Earth MOID = 1.53651 au 
 Jupiter MOID = 2.438 au 
 T_jup = 3.342 
[ 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 16.8   n/a MPO434435  

390055 (2012 UZ81)          Discovered 2005-Mar-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2012 UZ81 = 2005 EU122 = 2011 OQ45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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