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249391 (2009 BU108)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116360913137361 6.7072e-08  
a 3.942047359518968 9.6108e-08 au
q 3.501972600528636 2.4386e-07 au
i 14.3416068684153 1.3091e-05 deg
node 354.7649223088628 3.1756e-05 deg
peri 248.1136342249691 6.9493e-05 deg
M 92.0250194395084 6.05e-05 deg
tp 2458269.723454133124
(2018-May-31.22345413)
0.0004777 TDB
period 2858.782949619562
7.83
0.00010455
2.862e-07
d
yr
n .1259277134166158 4.6052e-09 deg/d
Q 4.382122118509299 1.0684e-07 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      5806 days (15.90 yr)  
   first obs. used      2004-09-07  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64417  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 17:01:28  

Additional Information
 Earth MOID = 2.52652 au 
 Jupiter MOID = .872116 au 
 T_jup = 2.996 
[ 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 15.0   n/a MPO454848  
diameter diameter 6.399 km 0.392 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.047   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

249391 (2009 BU108)          Discovered 2009-Jan-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 BU108 = 2004 RT134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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