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35356 Vondrak (1997 SL3)
Classification: Main-belt Asteroid          SPK-ID: 2035356
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242683151623396 4.0712e-08  
a 2.221200216263698 6.0673e-09 au
q 1.945175407750384 9.0866e-08 au
i 5.483222439122688 4.6067e-06 deg
node 351.32338360208 2.8635e-05 deg
peri 12.93325548905788 3.2413e-05 deg
M 16.07301523110005 1.3271e-05 deg
tp 2459146.514784047621
(2020-Oct-24.01478405)
4.4594e-05 TDB
period 1209.149463459213
3.31
4.9543e-06
1.356e-08
d
yr
n .2977299423101002 1.2199e-09 deg/d
Q 2.497225024777012 6.8213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      15795 days (43.24 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:04:52  

Additional Information
 Earth MOID = .94144 au 
 Jupiter MOID = 2.94959 au 
 T_jup = 3.633 
[ 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 16.43   n/a E2021B10  
diameter diameter 1.686 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35356 Vondrák           Discovered 1997 Sept. 25 by P. Pravec and L. Šarounová at Ondřejov.
Czech astronomer Jan Vondrák (b. 1940), currently president of IAU Division I, has made important contributions to the numerical treatment of the earth's rotation parameters and theoretical studies of lunar motion and ephemeris astronomy. In 2007 he was awarded the Nušl Prize of the Czech Astronomical Society.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

Alternate Designations
 1997 SL3 = 1977 RK19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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