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JPL Small-Body Database Browser
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39655 Muneharuasada (1995 UM3)
Classification: Main-belt Asteroid          SPK-ID: 2039655
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113045384425578 4.9428e-08  
a 2.730964519643729 1.6229e-08 au
q 2.42224158566799 1.3705e-07 au
i 5.865425008378297 5.9124e-06 deg
node 8.263069628103635 4.4811e-05 deg
peri 20.81446334108741 5.1064e-05 deg
M 171.400986177841 2.4381e-05 deg
tp 2458215.656023914728
(2018-Apr-07.15602391)
0.00011019 TDB
period 1648.437606406408
4.51
1.4694e-05
4.023e-08
d
yr
n .218388611495463 1.9467e-09 deg/d
Q 3.039687453619469 1.8064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      8867 days (24.28 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:32:49  

Additional Information
 Earth MOID = 1.42785 au 
 Jupiter MOID = 2.41527 au 
 T_jup = 3.337 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO337579  
diameter diameter 2.871 km 1.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.481 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.340   0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39655 Muneharuasada           Discovered 1995 Oct. 17 by T. Okuni at Nanyo.
Muneharu Asada (b. 1961) became a member of the Yamagata Astronomical Society in 2009 and actively popularizes astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09

Alternate Designations
 1995 UM3 = 1999 RJ151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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