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249523 Friedan (2010 DO53)
Classification: Main-belt Asteroid          SPK-ID: 2249523
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924064591384661 6.9218e-08  
a 3.189019015580521 4.426e-08 au
q 2.575431158667436 2.198e-07 au
i 27.53419093294604 7.5251e-06 deg
node 201.6558303088341 1.1608e-05 deg
peri 155.5014644346787 1.9296e-05 deg
M 180.5053205481018 1.7347e-05 deg
tp 2460037.629934106094
(2023-Apr-03.12993411)
0.00011288 TDB
period 2080.099406947884
5.70
4.3304e-05
1.186e-07
d
yr
n .1730686518142061 3.603e-09 deg/d
Q 3.802606872493605 5.2776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2000-10-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64715  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:45:10  

Additional Information
 Earth MOID = 1.59231 au 
 Jupiter MOID = 1.73346 au 
 T_jup = 2.994 
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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 15.3   n/a MPO294457  
diameter diameter 5.430 km 1.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.055   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249523 Friedan           Discovered 2010 Feb. 22 at WISE.
Betty Friedan (1921-2006) was an author and social activist who wrote The Feminine Mystique, a book that made an enormous impact on women's lives. She was a founder of the National Organization for Women and a convener of the National Women's Political Caucus.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-02-22Last Updated: 2016-02-25

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