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9851 Sakamoto (1990 UG3)
Classification: Main-belt Asteroid          SPK-ID: 2009851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3205873459265306 3.8425e-08  
a 2.593614969859854 1.0463e-08 au
q 1.762134830317165 1.0472e-07 au
i 6.49601784069268 3.7695e-06 deg
node 58.13114190857882 3.2712e-05 deg
peri .0314185829236518 3.3362e-05 deg
M 18.00135016582057 6.8876e-06 deg
tp 2458924.211467231281
(2020-Mar-15.71146723)
2.8878e-05 TDB
period 1525.656217103359
4.18
9.2318e-06
2.528e-08
d
yr
n .2359640369594554 1.4278e-09 deg/d
Q 3.425095109402543 1.3817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1810  
   data-arc span      18378 days (50.32 yr)  
   first obs. used      1969-10-09  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46497  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:29:15  

Additional Information
 Earth MOID = .774446 au 
 Jupiter MOID = 1.94404 au 
 T_jup = 3.335 
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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 13.7   n/a MPO502243  

9851 Sakamoto           Discovered 1990 Oct. 24 by K. Endate and K. Watanabe at Kitami.
Makoto Sakamoto (b. 1967) is a research fellow of the Nishi-Harima Astronomical Observatory. He worked previously as an engineer at a telescope manufacturing firm from 1993 to 1995. He was also well known as a youthful astronomy educator during his days as a university student.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1990 UG3 = 1969 TO3 = 1983 CP = 1986 XG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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