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39746 (1997 BW)
Classification: Main-belt Asteroid          SPK-ID: 2039746
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1558867544881501 7.5694e-08  
a 2.648708556167188 2.4312e-08 au
q 2.235809975761291 2.0214e-07 au
i 13.68566968420838 7.3729e-06 deg
node 122.7831339796043 3.0829e-05 deg
peri 306.614031855016 3.9204e-05 deg
M 181.5636783983554 2.2263e-05 deg
tp 2458180.923699983491
(2018-Mar-03.42369998)
9.9215e-05 JED
period 1574.525463606437
4.31
2.1678e-05
5.935e-08
d
yr
n .2286403162864213 3.1479e-09 deg/d
Q 3.061607136573085 2.8101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      6704 days (18.35 yr)  
   first obs. used      1996-12-17  
   last obs. used      2015-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58479  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:23:56  

Additional Information
 Earth MOID = 1.27854 au 
 Jupiter MOID = 2.2461 au 
 T_jup = 3.334 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO296440  

39746 (1997 BW)          Discovered 1997-Jan-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 BW = 2000 WF163 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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