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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3099580037977292 3.6906e-08  
a 2.687119389130432 1.0608e-08 au
q 1.85422522730939 9.9744e-08 au
i 7.704868146358463 3.7667e-06 deg
node 93.61444144676894 3.1357e-05 deg
peri 269.84606338 3.1799e-05 deg
M 25.33113579961137 6.431e-06 deg
tp 2458487.290979401879
(2019-Jan-03.79097940)
2.8479e-05 TDB
period 1608.899329968016
4.40
9.5272e-06
2.608e-08
d
yr
n .2237554539892541 1.325e-09 deg/d
Q 3.520013550951474 1.3896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2365  
   data-arc span      30653 days (83.92 yr)  
   first obs. used      1935-12-26  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:13:29  

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

[ 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 1.99335307920831 1.99335272522424 1.99335343319242 0.749302661071129 n/a 2457697.064925905 0.176388973347167 74.3027671388514 17.3333965004293 87.352576304947 17182364.306752 F 32 CATAB v2.0f-lin.ifort 2019-Dec-03 21:13:44 2019-Dec-03 21:13
2170-Dec-18 01:52 00:03 Jupiter 1.98273152635299 1.98273117062255 1.98273188208351 0.726772006961683 n/a 2513987.578104046 2.65592211765964 247.658576835213 17.6782047210527 89.6600992611066 16774074.4286544 F 32 CATAB v2.0f-lin.ifort 2019-Dec-03 21:13:44 2019-Dec-03 21:13

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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