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107638 Wendyfreedman (2001 EU13)
Classification: Main-belt Asteroid          SPK-ID: 2107638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147268713781039 5.6285e-08  
a 2.57625513651885 1.7921e-08 au
q 2.196853356191924 1.4264e-07 au
i 8.592279565561192 6.2853e-06 deg
node 6.74261041300405 3.684e-05 deg
peri 269.0394086624456 4.5708e-05 deg
M 148.2596862353302 3.4376e-05 deg
tp 2458378.482921953266
(2018-Sep-16.98292195)
0.00014014 TDB
period 1510.364373369777
4.14
1.576e-05
4.315e-08
d
yr
n .2383530797914701 2.4871e-09 deg/d
Q 2.955656916845776 2.056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      9182 days (25.14 yr)  
   first obs. used      1994-09-28  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57309  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:56:34  

Additional Information
 Earth MOID = 1.20151 au 
 Jupiter MOID = 2.22266 au 
 T_jup = 3.396 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO502747  
diameter diameter 4.253 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

107638 Wendyfreedman           Discovered 2001 Mar. 15 by D. Healy at Junk Bond Observatory.
Wendy Freedman (b. 1957) is director of the Carnegie Institution's observatories. She was one of the principal investigators using the Hubble Telescope to determine the rate of expansion of the universe. She is currently in charge of the Giant Magellan Telescope project.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

Alternate Designations
 2001 EU13 = 1994 SL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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