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5251 Bradwood (1985 KA)
Classification: Mars-crossing Asteroid          SPK-ID: 2005251
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2952408363556809 5.7334e-08  
a 2.3602054921761 1.3152e-08 AU
q 1.663376448694756 1.3518e-07 AU
i 22.17983405469523 1.0255e-05 deg
node 250.0989513268202 1.8011e-05 deg
peri 80.17735772012755 2.7194e-05 deg
M 351.7665737259741 2.1772e-05 deg
tp 2457030.790138004613
(2015-Jan-08.29013800)
8.0244e-05 JED
period 1324.41213642258
3.63
1.107e-05
3.031e-08
d
yr
n .2718187111848807 2.2719e-09 deg/d
Q 3.057034535657443 1.7034e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      12191 days (33.38 yr)  
   first obs. used      1981-04-25  
   last obs. used      2014-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5478  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:03:29  

Additional Information
 Earth MOID = .799753 AU 
 T_jup = 3.396 
[ 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 13.7 mag n/a MPO299000  

5251 Bradwood           Discovered 1985 May 18 by A. C. Gilmore and P. M. Kilmartin at Lake Tekapo.
Frank Bradshaw Wood (1915-1997) was a pioneer of photoelectric photometry and an expert on close binary stars. As a professor at the University of Pennsylvania, he supported the founding of Mt. John Observatory and promoted astronomical research there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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