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78393 Dillon (2002 PW165)
Classification: Main-belt Asteroid          SPK-ID: 2078393
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .108949927468695 3.724e-08  
a 2.637046971184628 1.363e-08 au
q 2.349740894942521 9.8175e-08 au
i 2.187187928077395 4.7884e-06 deg
node 15.11154750534386 0.00010072 deg
peri 297.0590445088227 0.0001033 deg
M 159.8890054430191 2.1267e-05 deg
tp 2458701.809555000729
(2019-Aug-06.30955500)
9.2362e-05 TDB
period 1564.138569170496
4.28
1.2126e-05
3.32e-08
d
yr
n .2301586362587539 1.7844e-09 deg/d
Q 2.924353047426736 1.5115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      13458 days (36.85 yr)  
   first obs. used      1984-03-05  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54216  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:35  

Additional Information
 Earth MOID = 1.33598 au 
 Jupiter MOID = 2.30512 au 
 T_jup = 3.387 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.80   n/a MPCxxxxx  

78393 Dillon           Discovered 2002 Aug. 8 by A. Lowe at Palomar.
William G. Dillon (b. 1957) is the founder of the Fort Bend Astronomy Club's Asteroid Team, which has discovered up to 100 minor planets per year. A tireless observer, he is the AAVSO's president for 2003-2005, and received its Director's Award in 1996. His wife Elizabeth's steadfast support has made his success possible.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

[ show close-approach data ]
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