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4941 Yahagi (1986 UA)
Classification: Main-belt Asteroid          SPK-ID: 2004941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739107700289136 3.7455e-08  
a 3.185329135936551 1.5843e-08 au
q 2.631366093110291 1.1977e-07 au
i 1.874921294707596 3.5473e-06 deg
node 129.3232110463179 0.00013525 deg
peri 266.3244737425731 0.00013577 deg
M 330.0766797577834 9.997e-06 deg
tp 2459173.098563828253
(2020-Nov-19.59856383)
5.733e-05 TDB
period 2076.49025827383
5.69
1.5492e-05
4.241e-08
d
yr
n .1733694625176162 1.2934e-09 deg/d
Q 3.739292178762811 1.8598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2407  
   data-arc span      18640 days (51.03 yr)  
   first obs. used      1969-10-15  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:47:25  

Additional Information
 Earth MOID = 1.63912 au 
 Jupiter MOID = 1.69126 au 
 T_jup = 3.174 
[ 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 12.6   n/a MPO448963  
diameter diameter 17.560 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4941 Yahagi           Discovered 1986 Oct. 25 by K. Suzuki and T. Urata at Toyota.
The Yahagi River flows through Aichi, hometown of the discoverers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

[ show close-approach data ]
Alternate Designations
 1986 UA = 1969 TR5 = 1975 VW1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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