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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2171061434537742 4.8219e-08  
a 2.22166886580796 1.0906e-08 AU
q 1.739330906321073 1.0556e-07 AU
i 5.556502568374007 5.2229e-06 deg
node 91.3002406117714 5.5643e-05 deg
peri 221.6418889383542 5.7141e-05 deg
M 163.2451523221775 1.61e-05 deg
tp 2456452.027050796233
(2013-Jun-08.52705080)
5.1744e-05 JED
period 1209.532160095463
3.31
8.9062e-06
2.438e-08
d
yr
n .2976357403936964 2.1916e-09 deg/d
Q 2.704006825294846 1.3274e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      13566 days (37.14 yr)  
   first obs. used      1977-12-07  
   last obs. used      2015-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52273  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:14:09  

Additional Information
 Earth MOID = .730726 AU 
 T_jup = 3.612 
[ 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 14.0 mag n/a MPO267730  

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 ]
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