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5176 Yoichi (1989 AU)
Classification: Main-belt Asteroid          SPK-ID: 2005176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3101950997582709 3.4203e-08  
a 2.687125482698681 9.8412e-09 au
q 1.853592325529972 9.135e-08 au
i 7.704835300955745 3.6038e-06 deg
node 93.61386792925514 2.7242e-05 deg
peri 269.8318111760585 2.7725e-05 deg
M 114.8202018914783 6.6566e-06 deg
tp 2458487.347849245821
(2019-Jan-03.84784925)
2.8418e-05 TDB
period 1608.904802711507
4.40
8.8385e-06
2.42e-08
d
yr
n .2237546928775945 1.2292e-09 deg/d
Q 3.52065863986739 1.2894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2816  
   data-arc span      30991 days (84.85 yr)  
   first obs. used      1935-12-26  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:45:31  

Additional Information
 Earth MOID = .870824 au 
 Jupiter MOID = 1.99875 au 
 T_jup = 3.290 
[ 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 12.3   n/a MPO337296  
diameter diameter 16.56 km 0.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
geometric albedo albedo 0.0849   0.007 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9

5176 Yoichi           Discovered 1989 Jan. 4 by S. Ueda and H. Kaneda at Kushiro.
Yoichi is a city of population of 24 000 located in southwestern Hokkaido and noted for its fruit and marine products.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010804/MPCPages.arcLast Updated: 2009-05-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2016-Nov-04 13:33 < 00:01 Jupiter 1.99335320091472 1.99335286886879 1.99335353296065 0.749302750722348 n/a 2457697.064856624 0.157858508534755 62.6875733928135 16.4671892635368 88.3612631931108 18097572.5348963 F 37 CATAB v2.0f-lin.ifort 2020-Nov-13 03:45:39 2020-Nov-13 03:45
2170-Dec-18 01:53 00:02 Jupiter 1.98273169439839 1.98273135904063 1.9827320297562 0.726772306570869 n/a 2513987.578240658 2.44732370267143 226.973163150745 16.6959826637271 -89.7597644731417 17761047.8193343 F 37 CATAB v2.0f-lin.ifort 2020-Nov-13 03:45:39 2020-Nov-13 03:45

Alternate Designations
 1989 AU = 1935 YH = 1948 VS = 1948 WS = 1952 OH1 = 1961 TK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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