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9418 Mayumi (1995 WX5)
Classification: Main-belt Asteroid          SPK-ID: 2009418
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029714231532991 5.417e-08  
a 2.189254691708803 1.1909e-08 AU
q 1.74489855128763 1.2466e-07 AU
i .8919252968678822 5.0774e-06 deg
node 65.50400195525357 0.00032942 deg
peri 309.8385480298618 0.0003297 deg
M 346.2189165569437 1.4524e-05 deg
tp 2457045.792231880917
(2015-Jan-23.29223188)
4.7873e-05 JED
period 1183.158315854001
3.24
9.6539e-06
2.643e-08
d
yr
n .3042703543355926 2.4827e-09 deg/d
Q 2.633610832129976 1.4326e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      11668 days (31.95 yr)  
   first obs. used      1982-11-09  
   last obs. used      2014-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51115  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:09:38  

Additional Information
 Earth MOID = .746099 AU 
 T_jup = 3.647 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3 mag n/a MPO259409  

9418 Mayumi           Discovered 1995 Nov. 18 by N. Sato and T. Urata at Chichibu.
Mayumi Sato is the wife of the first discoverer, who has received much support from her for his discoveries and observations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1995 WX5 = 1982 VL8 = 1998 QH46 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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