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90926 Stahalik (1997 SH1)
Classification: Main-belt Asteroid          SPK-ID: 2090926
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262571019934002 3.2205e-08  
a 2.328457177068662 7.851e-09 au
q 2.034472921776239 7.4835e-08 au
i 5.020931091400372 3.5297e-06 deg
node 118.5990638351167 4.5905e-05 deg
peri 309.4983873195245 4.8645e-05 deg
M 69.8997040435529 1.6179e-05 deg
tp 2458748.515605360508
(2019-Sep-22.01560536)
5.7962e-05 TDB
period 1297.77920109211
3.55
6.5637e-06
1.797e-08
d
yr
n .2773969560438726 1.403e-09 deg/d
Q 2.622441432361085 8.8422e-09 au
  Orbit Determination Parameters
   # obs. used (total)      967  
   data-arc span      8140 days (22.29 yr)  
   first obs. used      1997-09-22  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53961  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 13:59:11  

Additional Information
 Earth MOID = 1.05304 au 
 Jupiter MOID = 2.62998 au 
 T_jup = 3.557 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO453347  
diameter diameter 2.142 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.221   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90926 Stáhalík           Discovered 1997 Sept. 22 by M. Tichy at Klet.
Martin Stáhalík (1962-2001), Czech aerobatic pilot, won medals at the World Championships in all three categories of aerobatics--gliders (1996), advanced and unlimited (both 1995).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

Alternate Designations
 1997 SH1 = 2001 SU70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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