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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3101950997478595 3.424e-08  
a 2.687125482822476 9.8594e-09 au
q 1.853592325643343 9.1469e-08 au
i 7.704835325821825 3.6175e-06 deg
node 93.61386792132805 2.7307e-05 deg
peri 269.8318110321234 2.7791e-05 deg
M 114.820201946739 6.6578e-06 deg
tp 2458487.347848963390
(2019-Jan-03.84784896)
2.8427e-05 TDB
period 1608.904802822689
4.40
8.8549e-06
2.424e-08
d
yr
n .2237546928621321 1.2315e-09 deg/d
Q 3.520658640001609 1.2918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2747  
   data-arc span      30805 days (84.34 yr)  
   first obs. used      1935-12-26  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44934  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:17:48  

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 1.99335320159016 1.99335286882994 1.99335353435038 0.749302739602369 n/a 2457697.064853308 0.158462921655182 63.049023393991 16.492814172806 88.2820612354255 18068768.1540803 F 35 CATAB v2.0f-lin.ifort 2020-May-20 02:18:01 2020-May-20 02:18
2170-Dec-18 01:53 00:02 Jupiter 1.98273169493047 1.98273135892284 1.98273203093813 0.7267723025474 n/a 2513987.578246395 2.45182083482476 227.468158923331 16.731697673621 -89.7752555911896 17723154.9357569 F 35 CATAB v2.0f-lin.ifort 2020-May-20 02:18:01 2020-May-20 02:18

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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