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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05942671294665094 5.181e-08  
a 3.009605195401067 1.6086e-08 au
q 2.830754251371219 1.5659e-07 au
i 7.49752000193072 5.5642e-06 deg
node 73.79965516847784 2.9559e-05 deg
peri 167.2436248368785 4.6351e-05 deg
M 355.99251742388 3.4005e-05 deg
tp 2458621.729113587639
(2019-May-18.22911359)
0.00018008 TDB
period 1907.05280594121
5.22
1.529e-05
4.186e-08
d
yr
n .1887729583986664 1.5135e-09 deg/d
Q 3.188456139430916 1.7042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1653  
   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      .50546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:02:32  

Additional Information
 Earth MOID = 1.81811 au 
 Jupiter MOID = 1.81745 au 
 T_jup = 3.234 
[ 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-January); 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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