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JPL Small-Body Database Browser
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4176 Sudek (1987 DS)
Classification: Main-belt Asteroid          SPK-ID: 2004176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423301966522602 3.1465e-08  
a 3.099851943014506 1.3923e-08 au
q 2.658649406372361 9.7824e-08 au
i 2.599682780097087 3.7553e-06 deg
node 114.3208729968443 9.2821e-05 deg
peri 355.8732905770436 9.4126e-05 deg
M 60.23848865404972 1.4943e-05 deg
tp 2458666.934274108808
8.2686e-05 TDB
period 1993.470686332633
n .1805895629507792 1.2167e-09 deg/d
Q 3.541054479656651 1.5905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2570  
   data-arc span      24639 days (67.46 yr)  
   first obs. used      1952-11-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:04:26  

Additional Information
 Earth MOID = 1.67534 au 
 Jupiter MOID = 1.57423 au 
 T_jup = 3.205 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO431545  
diameter diameter 18.858 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 8.164 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.095   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

4176 Sudek           Discovered 1987 Feb. 24 by A. Mrkos at Klet.
Named in memory of Josef Sudek (1896-1976), outstanding Czech photographer, well-known for his black-and-white series of still lifes and views of Prague. Name suggested by M. Tichy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1987 DS = 1949 FF1 = 1952 VC = 1974 TC1 = 1979 SX5 = 1982 FO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-May-31 17:07 UT
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