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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2952336201486491 5.747e-08  
a 2.360036897276283 1.3134e-08 AU
q 1.66327466040902 1.3546e-07 AU
i 22.18097888603796 1.0274e-05 deg
node 250.1003705602271 1.8067e-05 deg
peri 80.19225984705366 2.7259e-05 deg
M 297.3884062133774 2.1637e-05 deg
tp 2457030.818527001250
(2015-Jan-08.31852700)
8.0682e-05 JED
period 1324.270230255107
3.63
1.1055e-05
3.027e-08
d
yr
n .2718478387380571 2.2693e-09 deg/d
Q 3.056799134143545 1.7012e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      12119 days (33.18 yr)  
   first obs. used      1981-04-25  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5429  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:11:27  

Additional Information
 Earth MOID = .798228 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 13.6 mag n/a MPO256902  

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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