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21682 Pestafrantisek (1999 RT32)
Classification: Main-belt Asteroid          SPK-ID: 2021682
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07867077246438905 3.587e-08  
a 2.467571599445816 1.0211e-08 au
q 2.273445835606226 9.0232e-08 au
i 8.51591704463303 3.5572e-06 deg
node 90.80544276932659 2.4554e-05 deg
peri 109.0239501391767 3.2625e-05 deg
M 320.7602110405394 2.2634e-05 deg
tp 2459354.821783460647
(2021-May-20.32178346)
8.9149e-05 TDB
period 1415.803793012971
3.88
8.7878e-06
2.406e-08
d
yr
n .2542725212184128 1.5783e-09 deg/d
Q 2.661697363285406 1.1014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1179  
   data-arc span      12804 days (35.06 yr)  
   first obs. used      1986-03-04  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:15:38  

Additional Information
 Earth MOID = 1.28513 au 
 Jupiter MOID = 2.3333 au 
 T_jup = 3.467 
[ 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 15.13   n/a MPCxxxxx  
diameter diameter 3.453 km 0.577 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21682 Peštafrantišek           Discovered 1999 Sept. 9 by P. Pravec and P. Kušnirák at Ondřejov.
František Pešta (1905-1982), founder of the public observatory in the town of Sezimovo Ústí that now bears his name, was a keen popularizer of astronomy. He studied archival records of the Strkov (near Tábor, Bohemia) meteorite shower in 1753.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1999 RT32 = 1998 HX122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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