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JPL Small-Body Database Browser
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58184 Masayukiyamamoto (1991 RG1)
Classification: Main-belt Asteroid          SPK-ID: 2058184
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1981170134427586 3.6519e-08  
a 2.384859721439642 8.0603e-09 au
q 1.912378435948091 8.7392e-08 au
i 1.741671549147891 4.3346e-06 deg
node 31.94161398965869 0.00012048 deg
peri 294.4208562684963 0.00012084 deg
M 301.6649047386944 1.0906e-05 deg
tp 2459218.481730291607
(2021-Jan-03.98173029)
4.1253e-05 TDB
period 1345.218046760115
3.68
6.8198e-06
1.867e-08
d
yr
n .2676146078080358 1.3567e-09 deg/d
Q 2.857341006931193 9.6572e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      10491 days (28.72 yr)  
   first obs. used      1991-08-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 11:32:44  

Additional Information
 Earth MOID = .901515 au 
 Jupiter MOID = 2.48085 au 
 T_jup = 3.508 
[ 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 15.5   n/a MPO436189  

58184 Masayukiyamamoto           Discovered 1991 Sept. 7 by T. Seki at Geisei.
Masayuki Yamamoto (b. 1971) is a Japanese planetary scientist. He specializes in upper atmospheric physics, developing in-situ and remote-sensing equipment, and collaborating with JAXA and NASA, as well as with amateur astronomers and high school students.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

[ show close-approach data ]
Alternate Designations
 1991 RG1 = 2002 PG84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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