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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978534179754586 2.999e-08  
a 2.384465718023297 7.2157e-09 au
q 1.912691025667082 7.3734e-08 au
i 1.74162448262433 3.694e-06 deg
node 31.91837831317212 0.00010257 deg
peri 294.3085551822058 0.00010301 deg
M 47.74156968928614 9.7367e-06 deg
tp 2459218.147482289810
(2021-Jan-03.64748229)
3.6091e-05 TDB
period 1344.884694691497
3.68
6.1047e-06
1.671e-08
d
yr
n .2676809405453011 1.2151e-09 deg/d
Q 2.856240410379513 8.6433e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      10603 days (29.03 yr)  
   first obs. used      1991-08-08  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:40  

Additional Information
 Earth MOID = .901079 au 
 Jupiter MOID = 2.48069 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457193.5 (2015-Jun-20.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970952926593527 2.9929e-08  
q 1.91626718022232 7.3514e-08 au
tp 2456526.084696062634
(2013-Aug-21.58469606)
3.4239e-05 TDB
node 31.97608871994854 0.00010261 deg
peri 294.1811981769334 0.00010306 deg
i 1.741676106264499 3.6899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      10603 days (29.03 yr)  
   first obs. used      1991-08-08  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:40  

Additional Information
 Jupiter MOID = 2.48069 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.95715241595568E-16 -2.194107826264503E-15 1.209157302626161E-13 5.614105379997826E-16 4.577565435879551E-14 -2.682635941335951E-16
q -2.194107826264503E-15 5.404323366855035E-15 -2.853327193664514E-13 -2.486980591004236E-15 -1.042316361526019E-13 6.894001739829165E-16
tp 1.209157302626161E-13 -2.853327193664514E-13 1.172299467582962E-9 -5.01551037296629E-12 3.340268416563823E-10 2.988216252281965E-13
node 5.614105379997826E-16 -2.486980591004236E-15 -5.01551037296629E-12 1.052963712258437E-8 -1.052588434623162E-8 7.774818617750889E-12
peri 4.577565435879551E-14 -1.042316361526019E-13 3.340268416563823E-10 -1.052588434623162E-8 1.062102052938032E-8 -7.695628666099954E-12
i -2.682635941335951E-16 6.894001739829165E-16 2.988216252281965E-13 7.774818617750889E-12 -7.695628666099954E-12 1.361563167952693E-11

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 15.57   n/a E2021B10  

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

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Alternate Designations
 1991 RG1 = 2002 PG84 
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