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22249 Dvorets Pionerov (1972 RF2)
Classification: Main-belt Asteroid          SPK-ID: 2022249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470004524428758 3.964e-08  
a 2.299499965168026 8.5091e-09 au
q 1.731522433379147 9.2172e-08 au
i 3.860518223672847 4.5206e-06 deg
node 186.9855278720522 5.6252e-05 deg
peri 148.6135797746713 5.725e-05 deg
M 319.2186289942863 1.3792e-05 deg
tp 2459344.780573221687
(2021-May-10.28057322)
4.9124e-05 TDB
period 1273.645418947055
3.49
7.0695e-06
1.936e-08
d
yr
n .2826532366422817 1.5689e-09 deg/d
Q 2.867477496956906 1.0611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1253  
   data-arc span      17977 days (49.22 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:50  

Additional Information
 Earth MOID = .721626 au 
 Jupiter MOID = 2.52888 au 
 T_jup = 3.548 
[ 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 15.1   n/a MPO324514  
diameter diameter 5.535 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22249 Dvorets Pionerov           Discovered 1972 Sept. 11 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Moscow City Palace of Youth Creativity (Dvorets pionerov) was founded in 1936. Nowadays some 15~000 children study annually in the Palace, where they are freely engaged in art and sport, scientific and technical creativity. Among its former pupils there are many well known sportsmen, actors and scientists.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

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Alternate Designations
 1972 RF2 = 1979 SN10 = 1979 UD4 = 1986 TM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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