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JPL Small-Body Database Browser
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4097 Tsurugisan (1987 WW)
Classification: Main-belt Asteroid          SPK-ID: 2004097
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142370798591797 4.5973e-08  
a 2.238623716477916 7.0285e-09 au
q 1.919909070216418 1.0232e-07 au
i 3.972504032400191 5.1265e-06 deg
node 20.01311154306269 4.4895e-05 deg
peri 322.3242415236384 4.7134e-05 deg
M 196.4519037598122 1.6228e-05 deg
tp 2459156.292996461184
(2020-Nov-02.79299646)
5.5974e-05 TDB
period 1223.404511124235
3.35
5.7616e-06
1.577e-08
d
yr
n .2942608080373855 1.3858e-09 deg/d
Q 2.557338362739413 8.0291e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2175  
   data-arc span      25603 days (70.10 yr)  
   first obs. used      1949-04-04  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44382  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:11:51  

Additional Information
 Earth MOID = .912982 au 
 Jupiter MOID = 2.81966 au 
 T_jup = 3.620 
[ 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 13.6   n/a MPO384790  
diameter diameter 4.738 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.0758 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.275   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4097 Tsurugisan (1987 WW)          Discovered 1987-Nov-18 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 WW = 1949 GN = 1976 JV3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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