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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621313078207971 7.5236e-08  
a 3.162404923851749 3.8432e-08 au
q 2.649680077688737 2.3175e-07 au
i 4.195050371665408 9.9082e-06 deg
node 349.118862335135 0.00011646 deg
peri 101.4400141971255 0.00012312 deg
M 170.9766868438595 3.8335e-05 deg
tp 2456624.928645920418
(2013-Nov-28.42864592)
0.00021499 JED
period 2054.114475790376
5.62
3.7445e-05
1.025e-07
d
yr
n .1752580025324442 3.1948e-09 deg/d
Q 3.675129770014762 4.4664e-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 = 1.66866 au 
 Jupiter MOID = 1.55165 au 
 T_jup = 3.180 
[ 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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