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181846 (1998 UG2)
Classification: Main-belt Asteroid          SPK-ID: 2181846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2734986246060264 6.3215e-08  
a 2.456936125203412 1.427e-08 au
q 1.784967474215419 1.6196e-07 au
i 2.941437699089504 5.4339e-06 deg
node 359.5395833209953 7.82e-05 deg
peri 351.6967965999993 7.8476e-05 deg
M 292.0043676980948 9.8945e-06 deg
tp 2459466.185431877871
(2021-Sep-08.68543188)
4.0174e-05 TDB
period 1406.660284462914
3.85
1.2255e-05
3.355e-08
d
yr
n .2559253317779238 2.2297e-09 deg/d
Q 3.128904776191405 1.8173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7898 days (21.62 yr)  
   first obs. used      1998-10-11  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:18  

Additional Information
 Earth MOID = .777652 au 
 Jupiter MOID = 2.30873 au 
 T_jup = 3.438 
[ 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 16.76   n/a E2021B55  

181846 (1998 UG2)          Discovered 1998-Oct-20 by ODAS at Caussols
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1998 UG2 = 2002 VL106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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