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JPL Small-Body Database Browser
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8911 Kawaguchijun (1995 YA)
Classification: Main-belt Asteroid          SPK-ID: 2008911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05985682649200195 5.0581e-08  
a 3.008179030615842 1.6388e-08 au
q 2.828118980323391 1.5337e-07 au
i 7.49174868395288 5.4486e-06 deg
node 73.77308299854299 2.9393e-05 deg
peri 165.8027252089434 4.6178e-05 deg
M 72.83510912025984 3.3665e-05 deg
tp 2458614.939778893283
(2019-May-11.43977889)
0.0001791 TDB
period 1905.697420858385
5.22
1.5573e-05
4.264e-08
d
yr
n .1889072189843468 1.5437e-09 deg/d
Q 3.188239080908293 1.7369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      10042 days (27.49 yr)  
   first obs. used      1992-02-29  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:06:53  

Additional Information
 Earth MOID = 1.81599 au 
 Jupiter MOID = 1.8156 au 
 T_jup = 3.235 
[ 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 13.0   n/a MPO266005  
diameter diameter 15.013 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.120 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 0.054   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8911 Kawaguchijun           Discovered 1995 Dec. 17 by T. Kobayashi at Oizumi.
Kawaguchi Jun'ichiro (b. 1955) is project manager of the MUSES-C mission, designed to deliver the world's first sample-and-return spacecraft.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1995 YA = 1992 DL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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