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8330 Fitzroy (1982 FX3)
Classification: Main-belt Asteroid          SPK-ID: 2008330
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021143787493818 3.668e-08  
a 3.178024912938476 1.7672e-08 au
q 2.853502873303706 1.1709e-07 au
i 5.357843795434373 4.7016e-06 deg
node 12.11276898547886 4.0529e-05 deg
peri 224.8841222299352 4.5896e-05 deg
M 232.508068820145 2.2089e-05 deg
tp 2459733.349121867718
(2022-Jun-02.84912187)
0.00012831 TDB
period 2069.35200863963
5.67
1.726e-05
4.726e-08
d
yr
n .1739675021441423 1.451e-09 deg/d
Q 3.502546952573247 1.9476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2231  
   data-arc span      25189 days (68.96 yr)  
   first obs. used      1951-11-30  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:34:39  

Additional Information
 Earth MOID = 1.84528 au 
 Jupiter MOID = 1.51622 au 
 T_jup = 3.185 
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Orbital Elements at Epoch 2456517.5 (2013-Aug-13.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1070406669928427 3.6345e-08  
q 2.832611476633644 1.1639e-07 au
tp 2455598.266079094215
(2011-Feb-05.76607909)
0.00011839 TDB
node 12.32188523602508 4.0642e-05 deg
peri 224.7855535648673 4.5552e-05 deg
i 5.356024013900384 4.6964e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2231  
   data-arc span      25189 days (68.96 yr)  
   first obs. used      1951-11-30  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:34:39  

Additional Information
 Jupiter MOID = 1.51622 au 
 T_jup = 3.185 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.320926308484551E-15 -4.192043250382604E-15 -9.009716690102884E-13 -2.079924885330558E-15 -1.392187483185632E-13 -3.416072159859424E-16
q -4.192043250382604E-15 1.354622139527368E-14 2.787467294939831E-12 7.300869501357599E-15 4.479466912373549E-13 1.604709638305254E-15
tp -9.009716690102884E-13 2.787467294939831E-12 1.401601004677674E-8 -2.041694045727698E-12 2.447487423280462E-9 7.818540731873343E-13
node -2.079924885330558E-15 7.300869501357599E-15 -2.041694045727698E-12 1.651805452439526E-9 -1.644601861224299E-9 -1.639036529189359E-11
peri -1.392187483185632E-13 4.479466912373549E-13 2.447487423280462E-9 -1.644601861224299E-9 2.074973511658404E-9 1.639411014781395E-11
i -3.416072159859424E-16 1.604709638305254E-15 7.818540731873343E-13 -1.639036529189359E-11 1.639411014781395E-11 2.20561221501947E-11

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 12.4   n/a MPO365349  
diameter diameter 12.573 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8330 Fitzroy           Discovered 1982 Mar. 28 by H. Debehogne at the European Southern Observatory.
British Naval Officer, hydrographer and meteorologist Robert FitzRoy (1805-1865) was captain of the HMS Beagle, which sailed around the world with Charles Darwin aboard as naturalist. FitzRoy was governor of New Zealand (1843-1848) and in 1854 established and directed what is now the British Meteorological Office.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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Alternate Designations
 1982 FX3 = 1987 CM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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