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19980 Barrysimon (1989 WF2)
Classification: Main-belt Asteroid          SPK-ID: 2019980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2539650932916467 3.24e-08  
a 2.351506810024378 9.8051e-09 au
q 1.754306163640594 7.7108e-08 au
i 21.61838205907014 5.2192e-06 deg
node 221.4311359505315 1.0473e-05 deg
peri 261.8494054251061 1.4692e-05 deg
M 244.6232039157683 1.0006e-05 deg
tp 2459818.617893415177
(2022-Aug-27.11789342)
3.7486e-05 TDB
period 1317.097083529017
3.61
8.2379e-06
2.255e-08
d
yr
n .2733283707799425 1.7096e-09 deg/d
Q 2.948707456408162 1.2295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1432  
   data-arc span      26163 days (71.63 yr)  
   first obs. used      1949-11-19  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:02:00  

Additional Information
 Earth MOID = .904595 au 
 Jupiter MOID = 2.56825 au 
 T_jup = 3.422 
[ 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 14.25   n/a E2021B10  
diameter diameter 3.601 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.312   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19980 Barrysimon           Discovered 1989 Nov. 22 by C. S. Shoemaker and D. H. Levy at Palomar.
Barry Simon (b. 1952), a first-rate amateur astronomer, founded the Deep South Regional Stargaze in 1983 and has managed it since then. Now in its twentieth year, this event helps participants from many southern states observe under a dark sky. Simon has amassed a large collection of refractor telescopes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1989 WF2 = 2000 UL16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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