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

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3179176071191482 7.2916e-08  
a 2.59626152549201 1.2791e-08 AU
q 1.770864273852081 1.8827e-07 AU
i 6.488076275019838 6.8631e-06 deg
node 58.22407771761939 4.887e-05 deg
peri 359.4203074359602 4.9521e-05 deg
M 220.3208213702214 8.723e-06 deg
tp 2457393.357413406420
(2016-Jan-05.85741341)
3.8916e-05 JED
period 1527.992009403252
4.18
1.1292e-05
3.092e-08
d
yr
n .2356033263162128 1.7411e-09 deg/d
Q 3.42165877713194 1.6857e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      880  
   data-arc span      11067 days (30.30 yr)  
   first obs. used      1983-02-11  
   last obs. used      2013-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55022  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 16:28:37  

Additional Information
 Earth MOID = .781981 AU 
 T_jup = 3.335 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO263437  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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