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249386 (2009 BU75)
Classification: Main-belt Asteroid          SPK-ID: 2249386
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583051846465913 6.1626e-08  
a 3.163425232249971 4.5697e-08 au
q 2.662638616742953 2.0634e-07 au
i 26.17794876880876 9.9029e-06 deg
node 325.4017745885724 1.2196e-05 deg
peri 127.3845235234061 4.1513e-05 deg
M 44.13563261956863 3.2204e-05 deg
tp 2458748.545776071687
(2019-Sep-22.04577607)
0.00018643 TDB
period 2055.108655539632
5.63
4.4531e-05
1.219e-07
d
yr
n .1751732196882169 3.7957e-09 deg/d
Q 3.664211847756988 5.2932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      6342 days (17.36 yr)  
   first obs. used      2002-12-09  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:43:24  

Additional Information
 Earth MOID = 1.74487 au 
 Jupiter MOID = 1.58832 au 
 T_jup = 3.027 
[ 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 15.3   n/a MPO241563  
diameter diameter 6.074 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249386 (2009 BU75)          Discovered 2009-Jan-24 by PMO NEO Survey Program at Purple Mountain
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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