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JPL Small-Body Database Browser
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442408 (2011 UG81)
Classification: Main-belt Asteroid          SPK-ID: 2442408
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196943037010525 1.0583e-07  
a 2.776896678354253 5.9895e-08 au
q 2.444517963988875 3.3636e-07 au
i 3.501196724351045 7.2386e-06 deg
node 209.1315124179157 0.00011715 deg
peri 136.97062946191 0.00012197 deg
M 271.1291765220068 3.6211e-05 deg
tp 2459017.748430719809
(2020-Jun-17.24843072)
0.0001779 TDB
period 1690.199653616659
4.63
5.4684e-05
1.497e-07
d
yr
n .2129925889108299 6.891e-09 deg/d
Q 3.109275392719631 6.7064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4703 days (12.88 yr)  
   first obs. used      2006-08-21  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56751  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:08  

Additional Information
 Earth MOID = 1.43806 au 
 Jupiter MOID = 2.29522 au 
 T_jup = 3.322 
[ 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 17.2   n/a MPO440831  

442408 (2011 UG81)          Discovered 2006-Aug-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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