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18531 Strakonice (1996 XM2)
Classification: Main-belt Asteroid          SPK-ID: 2018531
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2400852681166587 3.7644e-08  
a 2.21237061676619 6.832e-09 au
q 1.681213024066462 8.3342e-08 au
i 5.00793939350692 3.8738e-06 deg
node 82.56593562126697 4.8046e-05 deg
peri 249.2008034026133 4.8656e-05 deg
M 140.8229797965268 1.0315e-05 deg
tp 2458530.328523577122
(2019-Feb-15.82852358)
3.3082e-05 TDB
period 1201.946811215043
3.29
5.5676e-06
1.524e-08
d
yr
n .2995140855160449 1.3874e-09 deg/d
Q 2.743528209465918 8.4723e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1607  
   data-arc span      10104 days (27.66 yr)  
   first obs. used      1992-06-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52809  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:27:50  

Additional Information
 Earth MOID = .67871 au 
 Jupiter MOID = 2.63184 au 
 T_jup = 3.613 
[ 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 14.4   n/a MPO313568  
diameter diameter 2.907 km 0.627 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18531 Strakonice           Discovered 1996 Dec. 4 by M. Tichy and Z. Moravec at Klet.
Strakonice is a southern Bohemian town known for a Gothic castle at the confluence of the Volyňka and Otava rivers. The town is situated in the heart of the Prácheň Region---where the bagpipe has long been played.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020921/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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