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JPL Small-Body Database Browser
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442581 (2012 BU93)
Classification: Main-belt Asteroid          SPK-ID: 2442581
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 .1460128404778731 1.0459e-07  
a 3.053085268963555 5.7511e-08 au
q 2.607295616621035 3.4182e-07 au
i 11.65328287185399 1.4309e-05 deg
node 317.232243882775 4.368e-05 deg
peri 79.836601737899 6.945e-05 deg
M 209.0839048727801 5.2589e-05 deg
tp 2459417.345435029453
(2021-Jul-21.84543503)
0.00029581 TDB
period 1948.528792523497
5.33
5.5056e-05
1.507e-07
d
yr
n .1847547756960635 5.2203e-09 deg/d
Q 3.498874921306075 6.5908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      7167 days (19.62 yr)  
   first obs. used      1999-10-16  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60877  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:48  

Additional Information
 Earth MOID = 1.64462 au 
 Jupiter MOID = 2.06281 au 
 T_jup = 3.189 
[ 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 16.1   n/a MPO450446  
diameter diameter 2.133 km 0.582 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442581 (2012 BU93)          Discovered 2010-Jul-19 by WISE at WISE
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 BU93 = 2010 OB24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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