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442579 (2012 BQ87)
Classification: Main-belt Asteroid          SPK-ID: 2442579
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 .09987418041216217 6.1693e-08  
a 3.138989256621525 7.4081e-08 au
q 2.825485277293868 1.9381e-07 au
i 15.51354090116651 9.6023e-06 deg
node 287.7315339309154 3.1849e-05 deg
peri 126.4606190086538 7.1402e-05 deg
M 243.6287200210208 6.4893e-05 deg
tp 2459657.138709522631
(2022-Mar-18.63870952)
0.00037817 TDB
period 2031.342574137257
5.56
7.1911e-05
1.969e-07
d
yr
n .1772226923136771 6.2738e-09 deg/d
Q 3.452493235949181 8.148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5404 days (14.80 yr)  
   first obs. used      2004-08-12  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51311  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:48  

Additional Information
 Earth MOID = 1.86887 au 
 Jupiter MOID = 1.86633 au 
 T_jup = 3.147 
[ 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 15.6   n/a MPO437721  
diameter diameter 4.431 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442579 (2012 BQ87)          Discovered 2010-Jul-23 by WISE at WISE
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2012 BQ87 = 2010 OH52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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