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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3099580009512556 3.7531e-08  
a 2.687119389925835 1.0774e-08 au
q 1.854225235507065 1.0165e-07 au
i 7.704868107939334 3.7758e-06 deg
node 93.61444238767149 3.2215e-05 deg
peri 269.8460620965029 3.2641e-05 deg
M 25.33113581334965 6.4314e-06 deg
tp 2458487.290979290215
(2019-Jan-03.79097929)
2.8482e-05 TDB
period 1608.899330682381
4.40
9.6764e-06
2.649e-08
d
yr
n .2237554538899047 1.3457e-09 deg/d
Q 3.520013544344604 1.4114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2315  
   data-arc span      30625 days (83.85 yr)  
   first obs. used      1935-12-26  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47584  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:43:37  

Additional Information
 Earth MOID = .87063 au 
 Jupiter MOID = 1.99593 au 
 T_jup = 3.291 
[ 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

[ show close-approach data ]
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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