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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2402035979725401 1.6848e-08  
a 2.212194741703919 5.1661e-09 au
q 1.680817605330704 3.8495e-08 au
i 5.007723655473774 8.7317e-07 deg
node 82.56106932668715 9.7577e-06 deg
peri 249.2238538373526 1.1451e-05 deg
M 200.6982213858549 3.76e-06 deg
tp 2459732.303981397380
(2022-Jun-01.80398140)
1.3534e-05 TDB
period 1201.80348875312
3.29
4.2098e-06
1.153e-08
d
yr
n .2995498044139501 1.0493e-09 deg/d
Q 2.743571878077134 6.407e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      10511 days (28.78 yr)  
   first obs. used      1992-06-04  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:31:06  

Additional Information
 Earth MOID = .67643 au 
 Jupiter MOID = 2.63204 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 14.43   n/a E2021B10  
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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