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31650 Frydek-Mistek (1999 HW)
Classification: Main-belt Asteroid          SPK-ID: 2031650
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860687737825238 6.724e-08  
a 2.742998387441366 1.6579e-08 AU
q 2.232612041002711 1.8611e-07 AU
i 14.0021263951988 8.0944e-06 deg
node 185.5021381240618 2.1705e-05 deg
peri 165.357399006959 2.8388e-05 deg
M 32.24193239095116 1.7589e-05 deg
tp 2456851.887507721385
(2014-Jul-13.38750772)
8.0786e-05 JED
period 1659.345245550991
4.54
1.5044e-05
4.119e-08
d
yr
n .2169530427529932 1.9669e-09 deg/d
Q 3.253384733880021 1.9663e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      15018 days (41.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2014-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56897  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:59:23  

Additional Information
 Earth MOID = 1.23075 AU 
 T_jup = 3.281 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a PDS3 (MPO 18837)  
rotation period rot_per 2.88 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Incomplete or inconclusive result.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]

31650 Frýdek-Místek           Discovered 1999 Apr. 18 by P. Pravec at Ondřejov.
The twin cities of Frýdek and Místek, on opposite sides of the Ostravice river at the border of Silesia and Moravia, are located in the beautiful landscape below the Beskydy Mountains. The discoverer lived in the twin cities for most of his childhood.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 HW = 1239 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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