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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3203981128799208 3.8658e-08  
a 2.593437390073445 1.056e-08 au
q 1.762504944421686 1.052e-07 au
i 6.496286585974444 3.8285e-06 deg
node 58.1330476265824 3.3046e-05 deg
peri .01261436949090745 3.3683e-05 deg
M 283.609193767344 6.5642e-06 deg
tp 2458924.205942039680
(2020-Mar-15.70594204)
2.9097e-05 TDB
period 1525.499531702391
4.18
9.3173e-06
2.551e-08
d
yr
n .2359882730335916 1.4413e-09 deg/d
Q 3.424369835725203 1.3943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1639  
   data-arc span      18285 days (50.06 yr)  
   first obs. used      1969-10-09  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47898  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:20:04  

Additional Information
 Earth MOID = .774443 au 
 Jupiter MOID = 1.94366 au 
 T_jup = 3.335 
[ show covariance matrix ]

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 13.6   n/a MPO449010  

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

[ show close-approach data ]
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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