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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876087148449403 4.1263e-08  
a 3.07205794071763 1.4763e-08 au
q 2.495713098530402 1.2905e-07 au
i .8130859608235571 4.4321e-06 deg
node 294.7594103888741 0.00032604 deg
peri 90.58429467772019 0.00032627 deg
M 88.08448571499417 1.1808e-05 deg
tp 2458519.284671432509
(2019-Feb-04.78467143)
6.3532e-05 TDB
period 1966.719983412554
5.38
1.4176e-05
3.881e-08
d
yr
n .1830458850452855 1.3194e-09 deg/d
Q 3.648402782904859 1.7532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1403  
   data-arc span      10450 days (28.61 yr)  
   first obs. used      1991-09-09  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:34:48  

Additional Information
 Earth MOID = 1.49995 au 
 Jupiter MOID = 1.81117 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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