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JPL Small-Body Database Browser
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9993 Kumamoto (1997 VX5)
Classification: Main-belt Asteroid          SPK-ID: 2009993
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05343748667684904 4.4867e-08  
a 2.53745672776245 1.1446e-08 au
q 2.401861417679563 1.1338e-07 au
i 10.70177851454424 4.651e-06 deg
node 166.4066466704528 2.1039e-05 deg
peri 159.4137591403996 5.057e-05 deg
M 297.6195061648187 4.8538e-05 deg
tp 2459256.324834485016
0.0001991 TDB
period 1476.374019384008
n .2438406496412094 1.6499e-09 deg/d
Q 2.673052037845337 1.2058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      14156 days (38.76 yr)  
   first obs. used      1980-08-04  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45561  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:46:20  

Additional Information
 Earth MOID = 1.39385 au 
 Jupiter MOID = 2.51795 au 
 T_jup = 3.421 
[ 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 13.7   n/a MPO473902  
diameter diameter 6.426 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.187   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

9993 Kumamoto           Discovered 1997 Nov. 6 by J. Kobayashi at the Kumamoto Civil Astronomical Observatory.
Kumamoto is the name of both a prefecture and its capital city---home of the discoverer---on the Japanese island of Kyushu. With Mt. Aso, it is home to the biggest crater of an active volcano in the world. The observatory was built in 1982 by raising funds from the citizens of Kumamoto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2178-Aug-29 09:12 00:02 Eunom 0.0410045775649336 0.0409952827128335 0.0410138880499149 7.56910699545986 7.56910695023087 2516798.883508933 1.93670961508831 1347.20146191116 30.2449999548484 69.9036833809111 190416.231032792 T 27 CATAB v2.0e-lin.ifort 2019-May-30 01:46:28 2019-May-30 01:46

Alternate Designations
 1997 VX5 = 1980 PE4 = 1988 NH1 = 1995 EB9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Feb-21 13:45 UT
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