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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626603511196832 8.1618e-08  
a 3.165840384756352 4.4431e-08 AU
q 2.650883676183011 2.6073e-07 AU
i 4.193323267300564 1.0093e-05 deg
node 349.1324095790494 0.00013062 deg
peri 101.8493035282459 0.00013975 deg
M 30.36714881364395 4.3412e-05 deg
tp 2456626.946464159985
(2013-Nov-30.44646416)
0.00024855 JED
period 2057.462598343565
5.63
4.3313e-05
1.186e-07
d
yr
n .1749728040207541 3.6834e-09 deg/d
Q 3.680797093329693 5.1658e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      425  
   data-arc span      12036 days (32.95 yr)  
   first obs. used      1981-02-09  
   last obs. used      2014-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57325  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:40:43  

Additional Information
 Earth MOID = 1.67089 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 14.3 mag n/a PDS3 (MPC 31899)  

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: 2014-07-14

[ 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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