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39580 (1993 FF20)
Classification: Main-belt Asteroid          SPK-ID: 2039580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243270794756887 4.4965e-08  
a 2.701814499392042 1.6277e-08 au
q 2.365905793397559 1.2372e-07 au
i 5.565555624025484 3.8622e-06 deg
node 102.5485823449649 5.9314e-05 deg
peri 27.56058693868421 6.3091e-05 deg
M 91.31381861645499 2.068e-05 deg
tp 2458589.051273104317
(2019-Apr-15.55127310)
9.2559e-05 TDB
period 1622.115293465056
4.44
1.4658e-05
4.013e-08
d
yr
n .221932436892936 2.0055e-09 deg/d
Q 3.037723205386524 1.8301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      10303 days (28.21 yr)  
   first obs. used      1991-11-09  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:30:47  

Additional Information
 Earth MOID = 1.38251 au 
 Jupiter MOID = 2.01422 au 
 T_jup = 3.349 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO431946  
diameter diameter 2.364 km 0.402 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.501   0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39580 (1993 FF20)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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