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11546 Miyoshimachi (1992 UM6)
Classification: Main-belt Asteroid          SPK-ID: 2011546
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822152887960153 3.2511e-08  
a 2.33849417245683 6.9501e-09 au
q 1.91238478147481 7.6834e-08 au
i 3.721919696447058 3.3133e-06 deg
node 302.9893176563739 6.1216e-05 deg
peri 131.9292165545659 6.2049e-05 deg
M 237.1013353000689 1.0988e-05 deg
tp 2459446.410324848825
(2021-Aug-19.91032485)
4.0618e-05 TDB
period 1306.179504370701
3.58
5.8231e-06
1.594e-08
d
yr
n .2756129603897307 1.2287e-09 deg/d
Q 2.764603563438849 8.2166e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1825  
   data-arc span      15167 days (41.52 yr)  
   first obs. used      1979-01-27  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:25:29  

Additional Information
 Earth MOID = .92992 au 
 Jupiter MOID = 2.49674 au 
 T_jup = 3.541 
[ 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 14.0   n/a MPO473923  
rotation period rot_per 8.35 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Rowe, B. (2018) Minor Planet Bull. 45, 292-294.]

11546 Miyoshimachi           Discovered 1992 Oct. 28 by M. Yanai and K. Watanabe at Kitami.
Miyoshi Town, located in Saitama, was founded by the Kawagoe feudal lord, Yanagisawa Yoshiyasu, in 1694.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 1992 UM6 = 1979 BZ2 = 1981 SY5 = 1988 QJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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