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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1559310075027921 7.6557e-08  
a 2.649183108885647 2.511e-08 AU
q 2.236093317657729 2.0529e-07 AU
i 13.68574623772016 7.7328e-06 deg
node 122.7865503519993 3.0912e-05 deg
peri 306.7199774963666 3.9887e-05 deg
M 89.97940143540836 2.2631e-05 deg
tp 2456606.852958397692
(2013-Nov-10.35295840)
9.9123e-05 JED
period 1574.948629532275
4.31
2.2392e-05
6.131e-08
d
yr
n .2285788839391619 3.2498e-09 deg/d
Q 3.062272900113566 2.9025e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      6671 days (18.26 yr)  
   first obs. used      1996-12-17  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55856  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:53:21  

Additional Information
 Earth MOID = 1.27902 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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