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295474 (2008 QB18)
Classification: Main-belt Asteroid          SPK-ID: 2295474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423922221697255 5.6303e-08  
a 2.350585710961973 1.3994e-08 au
q 2.015880588177693 1.2963e-07 au
i 5.364733048029239 4.4962e-06 deg
node 149.2932092125043 6.3961e-05 deg
peri 221.2891721070537 6.6489e-05 deg
M 84.21826800543307 1.7272e-05 deg
tp 2458692.559812802652
(2019-Jul-28.05981280)
6.3202e-05 TDB
period 1316.323287293126
3.60
1.1755e-05
3.218e-08
d
yr
n .2734890459472918 2.4422e-09 deg/d
Q 2.685290833746253 1.5986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      5704 days (15.62 yr)  
   first obs. used      2004-06-15  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:40:18  

Additional Information
 Earth MOID = 1.01854 au 
 Jupiter MOID = 2.77947 au 
 T_jup = 3.538 
[ 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 17.0   n/a MPO450204  

295474 (2008 QB18)          Discovered 2008-Aug-28 by Ory, M. at Vicques
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 QB18 = 2006 BW238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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