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39746 (1997 BW)
Classification: Main-belt Asteroid          SPK-ID: 2039746
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554068799064844 5.0662e-08  
a 2.648847552681166 1.4746e-08 au
q 2.237198419171059 1.3699e-07 au
i 13.68482293008208 4.49e-06 deg
node 122.7751048799354 2.6399e-05 deg
peri 306.3959741737411 3.3603e-05 deg
M 96.06563679684794 1.9223e-05 deg
tp 2458180.306394935515
(2018-Mar-02.80639494)
8.3447e-05 TDB
period 1574.649405001164
4.31
1.3149e-05
3.6e-08
d
yr
n .2286223198996692 1.9091e-09 deg/d
Q 3.060496686191273 1.7038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1996-12-17  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55526  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:16  

Additional Information
 Earth MOID = 1.28057 au 
 Jupiter MOID = 2.24108 au 
 T_jup = 3.334 
[ 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 14.8   n/a MPO436048  
diameter diameter 3.716 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.169   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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