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8800 Brophy (1981 EB26)
Classification: Main-belt Asteroid          SPK-ID: 2008800
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624180562158227 7.5175e-08  
a 3.163459318970569 3.9127e-08 AU
q 2.649656405465539 2.3196e-07 AU
i 4.195039808239492 9.9072e-06 deg
node 349.1240569798239 0.00011645 deg
peri 101.6093949730985 0.00012306 deg
M 65.61058146958806 3.776e-05 deg
tp 2456625.947074355531
(2013-Nov-29.44707436)
0.00021443 JED
period 2055.141872115702
5.63
3.8128e-05
1.044e-07
d
yr
n .1751703884215992 3.2498e-09 deg/d
Q 3.677262232475599 4.5482e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      506  
   data-arc span      12511 days (34.25 yr)  
   first obs. used      1981-02-09  
   last obs. used      2015-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .552  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:03:02  

Additional Information
 Earth MOID = 1.67 AU 
 T_jup = 3.179 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO324390  

8800 Brophy           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring.
John R. Brophy (b. 1956) is a Principal Engineer at the Jet Propulsion Laboratory and a key developer of the ion propulsion engines that thrust the Dawn spacecraft to Vesta, enabling it to orbit Vesta, map it, and then continue on to Ceres.
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 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 1981 EB26 = 1995 QL10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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