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4647 Syuji (1931 TU1)
Classification: Main-belt Asteroid          SPK-ID: 2004647
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2601141859357136 2.6628e-08  
a 2.892322951522464 1.057e-08 au
q 2.139988721524018 7.632e-08 au
i 6.933904475448077 3.3738e-06 deg
node 180.5194825028694 3.6038e-05 deg
peri 128.1430581804015 3.721e-05 deg
M 81.01787151127476 9.2866e-06 deg
tp 2458796.159791056860
(2019-Nov-08.65979106)
4.6031e-05 TDB
period 1796.671185064069
4.92
9.8489e-06
2.696e-08
d
yr
n .2003705536064254 1.0984e-09 deg/d
Q 3.64465718152091 1.3319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2485  
   data-arc span      32663 days (89.43 yr)  
   first obs. used      1931-10-09  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:35:52  

Additional Information
 Earth MOID = 1.13211 au 
 Jupiter MOID = 1.7123 au 
 T_jup = 3.228 
[ show covariance matrix ]

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 12.95   n/a E2021B10  
diameter diameter 14.012 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.064   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4647 Syuji (1931 TU1)          Discovered 1931-Oct-09 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TU1 = 1970 PD = 1979 FN3 = 1979 GA = 1980 RF4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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