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249165 (2008 BT32)
Classification: Main-belt Asteroid          SPK-ID: 2249165
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1524453756152195 4.2741e-08  
a 2.670878899190645 2.4153e-08 au
q 2.263715762180763 1.194e-07 au
i 18.51923137446858 4.1725e-06 deg
node 154.8901030686982 1.7296e-05 deg
peri 226.0627177757604 2.4891e-05 deg
M 55.8975971849036 1.6107e-05 deg
tp 2458752.945764430501
(2019-Sep-26.44576443)
7.194e-05 TDB
period 1594.335522334194
4.37
2.1626e-05
5.921e-08
d
yr
n .2257993972767666 3.0629e-09 deg/d
Q 3.078042036200527 2.7835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      6714 days (18.38 yr)  
   first obs. used      2001-09-08  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55957  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:20  

Additional Information
 Earth MOID = 1.29597 au 
 Jupiter MOID = 2.44965 au 
 T_jup = 3.291 
[ 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 16.0   n/a MPO450107  
diameter diameter 2.500 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249165 (2008 BT32)          Discovered 2008-Jan-30 by Spacewatch at Kitt Peak
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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