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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3205873528757225 3.8019e-08  
a 2.593614968128643 1.0354e-08 au
q 1.76213481111743 1.0358e-07 au
i 6.496017746282279 3.7587e-06 deg
node 58.13114200382513 3.2664e-05 deg
peri .03141847809940396 3.3315e-05 deg
M 18.00135090040188 6.8485e-06 deg
tp 2458924.211464194557
(2020-Mar-15.71146419)
2.8718e-05 TDB
period 1525.65621557582
4.18
9.1356e-06
2.501e-08
d
yr
n .2359640371957107 1.4129e-09 deg/d
Q 3.425095125139856 1.3673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1861  
   data-arc span      18650 days (51.06 yr)  
   first obs. used      1969-10-09  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:10:38  

Additional Information
 Earth MOID = .774446 au 
 Jupiter MOID = 1.94404 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 13.7   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1959-Sep-24 11:03 < 00:01 Jupiter 1.94091497782983 1.94091473768094 1.94091521798181 1.36494660899825 0.995124015466045 2436835.960573217 0.863954758876348 203.771489411202 175.346702556775 37.659278098581 1705091.01118078 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 03:10:43 2020-Nov-13 03:10
2030-Sep-28 09:18 < 00:01 Jupiter 1.93993468026898 1.93993442610289 1.93993493444223 1.37038670557398 1.00235284810553 2462772.887703899 0.292428065483779 257.387843903944 190.700492712392 84.8847039963869 1696878.25238413 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 03:10:43 2020-Nov-13 03:10
2101-Oct-04 00:40 00:01 Jupiter 1.95557667368192 1.95557640643077 1.95557694093374 1.39366550886228 1.0373234200952 2488710.527852961 1.34008860687419 289.470239909727 168.408800357425 80.8272702932893 1756735.64200799 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 03:10:43 2020-Nov-13 03:10
2172-Oct-08 23:10 00:02 Jupiter 1.98305428797998 1.98305361265935 1.98305496330039 1.43277694385634 1.09480099948191 2514648.465176814 2.34881883236332 251.20165481438 136.970910583023 74.8524834250749 1653300.08666622 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 03:10:43 2020-Nov-13 03:10

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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