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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920010546450381 8.0684e-08  
a 3.190237828897414 4.7308e-08 au
q 2.577708801180614 2.6371e-07 au
i 27.52869003019553 8.475e-06 deg
node 201.6692229141465 1.3068e-05 deg
peri 155.546123605576 2.3682e-05 deg
M 111.243509500795 1.8365e-05 deg
tp 2457957.360478345479
(2017-Jul-22.86047835)
0.00010301 TDB
period 2081.292012762085
5.70
4.6295e-05
1.267e-07
d
yr
n .1729694813570363 3.8475e-09 deg/d
Q 3.802766856614214 5.6391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      6336 days (17.35 yr)  
   first obs. used      2000-10-01  
   last obs. used      2018-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64746  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:56:31  

Additional Information
 Earth MOID = 1.59371 au 
 Jupiter MOID = 1.7298 au 
 T_jup = 2.994 
[ 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 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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