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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2952338407980402 1.1218e-07  
a 2.360036938193994 2.0558e-08 AU
q 1.663274168505734 2.5565e-07 AU
i 22.18097307181096 1.1683e-05 deg
node 250.1004024174151 2.6313e-05 deg
peri 80.19226758757713 3.5406e-05 deg
M 297.3883424994585 3.2511e-05 deg
tp 2457030.818767364522
(2015-Jan-08.31876736)
0.000122 JED
period 1324.27026469489
3.63
1.7303e-05
4.737e-08
d
yr
n .2718478316682157 3.552e-09 deg/d
Q 3.056799707882253 2.6627e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      487  
   data-arc span      11641 days (31.87 yr)  
   first obs. used      1981-04-25  
   last obs. used      2013-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5548  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Oct-22 17:33:01  

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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