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46796 Mamigasakigawa (1998 KU)
Classification: Main-belt Asteroid          SPK-ID: 2046796
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08226286581595614 3.5763e-08  
a 2.303858355040312 6.9605e-09 au
q 2.114336364320662 8.1646e-08 au
i 8.054362913332822 3.3347e-06 deg
node 96.46023274360178 2.4561e-05 deg
peri 153.9843133663093 3.0874e-05 deg
M 157.6205436864624 1.8581e-05 deg
tp 2458641.267491872822
(2019-Jun-06.76749187)
6.5669e-05 TDB
period 1277.268167062383
3.50
5.7884e-06
1.585e-08
d
yr
n .2818515400943343 1.2773e-09 deg/d
Q 2.493380345759963 7.5331e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1834  
   data-arc span      8324 days (22.79 yr)  
   first obs. used      1998-05-19  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49842  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:52:28  

Additional Information
 Earth MOID = 1.10091 au 
 Jupiter MOID = 2.5365 au 
 T_jup = 3.572 
[ 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 14.60   n/a E2021B10  

46796 Mamigasakigawa           Discovered 1998 May 19 by T. Okuni at Nanyo.
Mamigasakigawa is the river that flows through the center of Yamagata City. It is a branch of the Mogami River.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121228/MPCPages.arcLast Updated: 2013-01-02

Alternate Designations
 1998 KU = 2000 AL139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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