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46744 (1997 WP38)
Classification: Main-belt Asteroid          SPK-ID: 2046744
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873662729785969 4.867e-08  
a 3.071881884203757 1.6447e-08 au
q 2.496314824530029 1.5466e-07 au
i .8129590998428522 4.5268e-06 deg
node 294.7629785884879 0.00037786 deg
peri 90.61826436170976 0.00037806 deg
M 14.85495970843043 1.2234e-05 deg
tp 2458519.352681451326
(2019-Feb-04.85268145)
6.6597e-05 TDB
period 1966.550919754014
5.38
1.5793e-05
4.324e-08
d
yr
n .1830616214326302 1.4702e-09 deg/d
Q 3.647448943877485 1.9528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1250  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1991-09-09  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53186  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:28:44  

Additional Information
 Earth MOID = 1.49984 au 
 Jupiter MOID = 1.80939 au 
 T_jup = 3.203 
[ 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 14.0   n/a MPO337632  
diameter diameter 9.675 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.025   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46744 (1997 WP38)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WP38 = 1999 AU24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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