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74509 Gillett (1999 FG7)
Classification: Main-belt Asteroid          SPK-ID: 2074509
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380232887676796 5.698e-08  
a 3.11270966096127 2.5646e-08 au
q 2.683083236576466 1.8242e-07 au
i .9944655427161939 6.2842e-06 deg
node 1.720229860111286 0.00033648 deg
peri 106.8696671379506 0.00033735 deg
M 78.16823142096125 2.3727e-05 deg
tp 2456964.953896747184
(2014-Nov-03.45389675)
0.00013184 JED
period 2005.886462066838
5.49
2.479e-05
6.787e-08
d
yr
n .1794717731077665 2.218e-09 deg/d
Q 3.542336085346073 2.9186e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      6360 days (17.41 yr)  
   first obs. used      1997-11-29  
   last obs. used      2015-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54242  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 18:36:03  

Additional Information
 Earth MOID = 1.69988 au 
 Jupiter MOID = 1.58491 au 
 T_jup = 3.203 
[ 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 MPO337819  

74509 Gillett           Discovered 1999 Mar. 22 by C. W. Juels at Fountain Hills.
Frederick C. Gillett (1937-2001), a pioneer in infrared astronomy, was the discoverer of the infrared excess of Vega in 1983 using the Infrared Astronomy Satellite. The Gemini North 8-m Telescope was renamed the Frederick C. Gillett Gemini Telescope in his honor on 2002 Nov. 18.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 1999 FG7 = 1997 WW52 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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