Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
5684 Kogo (1990 UB2)
Classification: Main-belt Asteroid          SPK-ID: 2005684
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172570295521251 4.7806e-08  
a 2.220579438740871 1.0475e-08 au
q 1.738142945995504 1.0476e-07 au
i 5.553565688797467 4.9023e-06 deg
node 91.23876899115012 5.2299e-05 deg
peri 221.9695745878778 5.369e-05 deg
M 341.5554387262158 1.646e-05 deg
tp 2457662.424673701935
(2016-Sep-30.92467370)
5.556e-05 JED
period 1208.642602108515
3.31
8.552e-06
2.341e-08
d
yr
n .2978547995676875 2.1075e-09 deg/d
Q 2.703015931486238 1.275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1198  
   data-arc span      13997 days (38.32 yr)  
   first obs. used      1977-12-07  
   last obs. used      2016-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5018  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:53:03  

Additional Information
 Earth MOID = .728211 au 
 Jupiter MOID = 2.57032 au 
 T_jup = 3.613 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO337301  

5684 Kogo           Discovered 1990 Oct. 21 by T. Urata at the Nihondaira Observatory.
Kogo-no-Tsubone was the lover of emperor Takakura. She is the most well-known heroine in the story of Heike. She excelled at playing Koto, the Japanese lyre, but she was ostracized from the palace and went to live in seclusion.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1990 UB2 = 1977 XD3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Apr-28 21:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin