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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377572869349658 6.1758e-08  
a 3.114650444371475 3.872e-08 AU
q 2.685584649404075 2.0749e-07 AU
i .995182793180809 7.5883e-06 deg
node 1.712746720721285 0.00035962 deg
peri 107.4100117189038 0.00036094 deg
M 5.990872212312259 3.2453e-05 deg
tp 2456967.088193949435
(2014-Nov-05.58819395)
0.00018066 JED
period 2007.762768413482
5.50
3.744e-05
1.025e-07
d
yr
n .1793040520840364 3.3436e-09 deg/d
Q 3.543716239338874 4.4054e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      6151 days (16.84 yr)  
   first obs. used      1997-11-29  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5994  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 16:27:27  

Additional Information
 Earth MOID = 1.70245 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 14.3 mag n/a MPO309717  

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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