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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
7251 Kuwabara (1992 SF13)
Classification: Main-belt Asteroid          SPK-ID: 2007251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07883213124169887 3.4457e-08  
a 2.559405245454326 1.0685e-08 au
q 2.357641875243978 8.7371e-08 au
i 3.633006534528025 4.3167e-06 deg
node 194.5182081002766 5.589e-05 deg
peri 260.7048276137836 6.2044e-05 deg
M 95.62131416236322 2.7292e-05 deg
tp 2458203.254288239768
(2018-Mar-25.75428824)
0.00011323 TDB
period 1495.570914146377
4.09
9.3655e-06
2.564e-08
d
yr
n .2407107523921566 1.5074e-09 deg/d
Q 2.761168615664674 1.1527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1681  
   data-arc span      16453 days (45.05 yr)  
   first obs. used      1974-04-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:26:43  

Additional Information
 Earth MOID = 1.37776 au 
 Jupiter MOID = 2.36202 au 
 T_jup = 3.429 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO344360  
diameter diameter 4.774 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7251 Kuwabara           Discovered 1992 Sept. 30 by K. Endate and K. Watanabe at Kitami.
Named in honor of Syoji Kuwabara (b. 1927). A retired school teacher in Japan, he was superintendent of the board of education in Himeji City (1981-1993) and director of the city's Science Museum (1993-1996). An amateur astronomer, he was once an enthusiastic observer of occultations; now he studies local names and legends of stars and asterisms. Name proposed by the discoverers following a suggestion by T. Sato, A. Fujii and K. Kitao.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1992 SF13 = 1974 HQ1 = 1982 FY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 02:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin