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33377 Vecernicek (1999 CR9)
Classification: Main-belt Asteroid          SPK-ID: 2033377
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1343206409993382 3.2694e-08  
a 2.277879031864053 8.6872e-09 au
q 1.971912860185121 7.6312e-08 au
i 7.155943837921555 4.4162e-06 deg
node 328.394011267667 2.8435e-05 deg
peri 297.3424227929162 3.3324e-05 deg
M 334.9615902676195 1.6178e-05 deg
tp 2459087.837077120466
(2020-Aug-26.33707712)
5.6353e-05 TDB
period 1255.724628657492
3.44
7.1835e-06
1.967e-08
d
yr
n .2866870584396196 1.64e-09 deg/d
Q 2.583845203542984 9.8541e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      9769 days (26.75 yr)  
   first obs. used      1993-09-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:12:53  

Additional Information
 Earth MOID = .968181 au 
 Jupiter MOID = 2.53213 au 
 T_jup = 3.585 
[ show covariance matrix ]

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 15.6   n/a MPO365647  
diameter diameter 1.547 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.466   0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33377 Večerníček           Discovered 1999 Feb. 12 by P. Pravec at Ondřejov.
Večerníček is an animated figure accompanied by music. It invites children to the Czech Television to see a bedtime story every evening. Ingeniously painted by R. Pilař, voiced by M. Citavý, and with the tune composed by L. Simon, it has become a real phenomenon loved by most Czech children since 1965.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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