Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05985683692037998 4.3402e-08  
a 3.008179028600342 1.566e-08 au
q 2.828118947058104 1.2917e-07 au
i 7.491744202072213 4.7782e-06 deg
node 73.77309031034352 2.9037e-05 deg
peri 165.802720850874 4.5148e-05 deg
M 72.83510710392184 3.3092e-05 deg
tp 2458614.939789954469
(2019-May-11.43978995)
0.00017591 TDB
period 1905.69741894314
5.22
1.4881e-05
4.074e-08
d
yr
n .1889072191742005 1.4751e-09 deg/d
Q 3.18823911014258 1.6597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1773  
   data-arc span      10381 days (28.42 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:02:51  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-23 04:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin