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52266 Van Flandern (1986 AD)
Classification: Main-belt Asteroid          SPK-ID: 2052266
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2201745771454706 1.1874e-07  
a 2.33469658576817 2.26e-08 AU
q 1.820655752233689 2.788e-07 AU
i 23.71161556223821 1.1318e-05 deg
node 302.187465962276 1.7844e-05 deg
peri 229.6610854711124 2.7626e-05 deg
M 359.8534650421803 2.6346e-05 deg
tp 2457001.030374752433
(2014-Dec-09.53037475)
9.5361e-05 JED
period 1302.999050308211
3.57
1.8919e-05
5.18e-08
d
yr
n .2762856963823924 4.0116e-09 deg/d
Q 2.848737419302651 2.7575e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      14190 days (38.85 yr)  
   first obs. used      1975-02-08  
   last obs. used      2013-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50482  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 08:17:55  

Additional Information
 Earth MOID = .893795 AU 
 T_jup = 3.425 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO244612  
rotation period rot_per 9.890 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Ditteon, R.; West, J. (2011) Minor Planet Bul. 38, 214-217.]
[Brinsfield, J.W. (2011) Minor Planet Bul. 38, 154-155.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

52266 Van Flandern           Discovered 1986 Jan. 10 by C. S. Shoemaker and E. M. Shoemaker at Palomar.
Tom Van Flandern (1940-2009) predicted and comprehensively analyzed lunar occultations at the U.S. Naval Observatory in the 1970s. In 1979 he published pioneering papers on the dynamics of binary minor planets. He helped improve GPS accuracies and established Meta Research to support alternative cosmological ideas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

Alternate Designations
 1986 AD = 1975 CJ = 1998 QX81 = 2002 QQ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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