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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1877851071207836 4.0934e-08  
a 3.07169529466348 1.4513e-08 au
q 2.494876664712691 1.2785e-07 au
i .8130082023143275 4.3148e-06 deg
node 294.7559774045515 0.0003217 deg
peri 90.56256999016875 0.00032191 deg
M 124.7073889225341 1.1654e-05 deg
tp 2458519.330316153347
(2019-Feb-04.83031615)
6.2063e-05 TDB
period 1966.371746722415
5.38
1.3936e-05
3.815e-08
d
yr
n .1830783017504471 1.2975e-09 deg/d
Q 3.648513924614269 1.7238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      10788 days (29.54 yr)  
   first obs. used      1991-09-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51775  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:40:10  

Additional Information
 Earth MOID = 1.49785 au 
 Jupiter MOID = 1.81227 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 14.05   n/a MPCxxxxx  
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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