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JPL Small-Body Database Browser
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305355 (2008 BU18)
Classification: Main-belt Asteroid          SPK-ID: 2305355
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 .06947748628467586 5.2175e-08  
a 2.805188157224787 3.5273e-08 au
q 2.610290735505266 1.4321e-07 au
i 4.559916994277876 7.0226e-06 deg
node 133.2538051708052 8.1249e-05 deg
peri 308.0940360303709 0.00010134 deg
M 259.7945744881818 6.4518e-05 deg
tp 2459478.172410339083
(2021-Sep-20.67241034)
0.00031063 TDB
period 1716.095379504063
4.70
3.2368e-05
8.862e-08
d
yr
n .2097785497820273 3.9567e-09 deg/d
Q 3.000085578944307 3.7724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      9273 days (25.39 yr)  
   first obs. used      1994-01-12  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5867  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:39  

Additional Information
 Earth MOID = 1.62928 au 
 Jupiter MOID = 2.1486 au 
 T_jup = 3.315 
[ 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 16.3   n/a MPO437356  

305355 (2008 BU18)          Discovered 2008-Jan-29 by La Sagra at La Sagra
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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