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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421701071341256 5.758e-08  
a 2.350084374778237 1.4532e-08 au
q 2.01597262744178 1.3334e-07 au
i 5.364699376002408 5.3909e-06 deg
node 149.2997212659459 6.5147e-05 deg
peri 221.2530090933348 6.7707e-05 deg
M 334.8418354880446 1.8045e-05 deg
tp 2458692.460232636131
(2019-Jul-27.96023264)
6.599e-05 TDB
period 1315.902188861002
3.60
1.2206e-05
3.342e-08
d
yr
n .2735765644645695 2.5376e-09 deg/d
Q 2.684196122114693 1.6598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      5616 days (15.38 yr)  
   first obs. used      2004-06-15  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58048  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:00:23  

Additional Information
 Earth MOID = 1.01777 au 
 Jupiter MOID = 2.777 au 
 T_jup = 3.539 
[ 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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