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6531 Subashiri (1994 YY)
Classification: Outer Main-belt Asteroid          SPK-ID: 2006531
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453347879479312 3.5261e-08  
a 3.226069534210878 1.7916e-08 au
q 2.757209402551059 1.0889e-07 au
i 2.424503062767891 3.8769e-06 deg
node 78.76146279466286 9.8398e-05 deg
peri 34.76681414855521 9.9485e-05 deg
M 141.8047757810373 1.563e-05 deg
tp 2458166.823865091206
(2018-Feb-17.32386509)
8.9244e-05 TDB
period 2116.454871947264
5.79
1.763e-05
4.827e-08
d
yr
n .1700957600238264 1.4169e-09 deg/d
Q 3.694929665870697 2.052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1618  
   data-arc span      23984 days (65.66 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4782  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:35:01  

Additional Information
 Earth MOID = 1.77418 au 
 Jupiter MOID = 1.4142 au 
 T_jup = 3.170 
[ 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 13.16   n/a E2021B10  
diameter diameter 12.116 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.062 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.120   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6531 Subashiri           Discovered 1994 Dec. 28 by T. Kobayashi at Oizumi.
Subashiri is the halfway point on the eastern trail of Mt. Fuji. Its altitude, 2000 m above sea level, makes this place an ideal observation location for amateur astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1994 YY = 1979 HK = 1982 VJ7 = 1988 XD = 1990 FW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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