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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1090754113260293 4.1282e-08  
a 2.636020807212989 1.4742e-08 au
q 2.348495753402261 1.1107e-07 au
i 2.187375184577184 5.1976e-06 deg
node 15.1198168806759 0.00010254 deg
peri 296.8472971181767 0.00010603 deg
M 68.93414363386336 2.3731e-05 deg
tp 2458701.167714382317
(2019-Aug-05.66771438)
0.0001035 TDB
period 1563.225669339133
4.28
1.3114e-05
3.59e-08
d
yr
n .2302930453746919 1.9319e-09 deg/d
Q 2.923545861023717 1.635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      13379 days (36.63 yr)  
   first obs. used      1984-03-05  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:02  

Additional Information
 Earth MOID = 1.33531 au 
 Jupiter MOID = 2.307 au 
 T_jup = 3.388 
[ 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 15.7   n/a MPO432334  

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