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29845 Wykrota (1999 FE21)
Classification: Main-belt Asteroid          SPK-ID: 2029845
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564901597482652 4.3024e-08  
a 2.408067347327279 1.1791e-08 au
q 2.031228503459452 1.0499e-07 au
i 13.85610321724474 6.1067e-06 deg
node 24.09096802151559 1.6693e-05 deg
peri 124.4084723932593 2.4829e-05 deg
M 284.2332944571783 2.1048e-05 deg
tp 2459287.761400310507
(2021-Mar-14.26140031)
8.1079e-05 TDB
period 1364.901685653142
3.74
1.0025e-05
2.745e-08
d
yr
n .2637552607517885 1.9373e-09 deg/d
Q 2.784906191195106 1.3637e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:48:33  

Additional Information
 Earth MOID = 1.07192 au 
 Jupiter MOID = 2.25936 au 
 T_jup = 3.466 
[ 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 14.2   n/a MPO502381  
diameter diameter 3.782 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

29845 Wykrota           Discovered 1999 Mar. 22 by C. Jacques at Wykrota Observatory.
A couple of Brazilian amateur astronomers, Zininha and Henrique Wykrota were pioneers in the study and popularization of astronomy at the state of Minas Gerais in the 1950s. They founded an active amateur club, the Center for Astronomical Studies and the Serra da Piedade Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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