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 ]  
18903 Matsuura (2000 ND29)
Classification: Main-belt Asteroid          SPK-ID: 2018903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .199079210486998 2.3353e-08  
a 2.55896666433243 9.4762e-09 au
q 2.049529601134583 6.1683e-08 au
i 9.32163787402173 1.3463e-06 deg
node 164.5921184335532 6.0077e-06 deg
peri 149.1460711929371 7.8867e-06 deg
M 344.9309048477851 7.5831e-06 deg
tp 2459263.086410434565
(2021-Feb-17.58641043)
3.1607e-05 TDB
period 1495.186507806467
4.09
8.3053e-06
2.274e-08
d
yr
n .2407726381427443 1.3374e-09 deg/d
Q 3.068403727530277 1.1363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2448  
   data-arc span      14600 days (39.97 yr)  
   first obs. used      1980-10-08  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43728  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:41:58  

Additional Information
 Earth MOID = 1.04044 au 
 Jupiter MOID = 2.27506 au 
 T_jup = 3.390 
[ 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 13.39   n/a E2021B10  
diameter diameter 5.711 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18903 Matsuura           Discovered 2000 July 10 by K. Watanabe at Sapporo.
The geographer and explorer Takeshirou Matsuura (1818-1888) traveled throughout the Ezo under the order of the Edo-shogunate. He showed understanding to and sympathy with the native Ainus. He renamed Ezo as Hokkaido and introduced names for many places on the island.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2000 ND29 = 1980 TD11 = 1988 SP3 = 1992 QO2 = 1996 TW37 = 1999 FR45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-15 04:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin