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279754 (1998 UB18)
Classification: Main-belt Asteroid          SPK-ID: 2279754
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864511227268891 9.8682e-08  
a 2.275244707923134 2.4864e-08 au
q 1.851022777652453 2.2723e-07 au
i 6.252651988579331 6.5425e-06 deg
node 272.3920304725519 8.3833e-05 deg
peri 55.2018398439365 8.8411e-05 deg
M 48.2034392978149 2.1547e-05 deg
tp 2457232.652019019808
(2015-Jul-29.15201902)
7.6146e-05 JED
period 1253.546925968171
3.43
2.0548e-05
5.626e-08
d
yr
n .2871851005673008 4.7075e-09 deg/d
Q 2.699466638193815 2.95e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      6253 days (17.12 yr)  
   first obs. used      1998-10-19  
   last obs. used      2015-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60707  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 22:24:14  

Additional Information
 Earth MOID = .845664 au 
 Jupiter MOID = 2.63179 au 
 T_jup = 3.579 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8 mag n/a MPO348755  

279754 (1998 UB18)          Discovered 1998-Oct-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20110615/Numbers.arcLast Updated: 2011-06-23

[ show close-approach data ]
Alternate Designations
 1998 UB18 = 2005 UC7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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