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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 ]

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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978534182861205 2.9954e-08  
a 2.384465717959834 7.2089e-09 au
q 1.912691024875412 7.3638e-08 au
i 1.741624487125028 3.694e-06 deg
node 31.91837654141761 0.00010252 deg
peri 294.3085569629107 0.00010296 deg
M 47.74156972273661 9.7353e-06 deg
tp 2459218.147482171966
(2021-Jan-03.64748217)
3.6087e-05 TDB
period 1344.884694637806
3.68
6.0989e-06
1.67e-08
d
yr
n .2676809405559876 1.2139e-09 deg/d
Q 2.856240411044256 8.6352e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1244  
   data-arc span      10936 days (29.94 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:58:21  

Additional Information
 Earth MOID = .901079 au 
 Jupiter MOID = 2.48069 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197094323123046 2.9893e-08  
q 1.916271417876064 7.3421e-08 au
tp 2456526.103226280195
(2013-Aug-21.60322628)
3.4242e-05 TDB
node 31.97537109677731 0.00010257 deg
peri 294.1854900041535 0.00010301 deg
i 1.741685551323959 3.69e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1244  
   data-arc span      10936 days (29.94 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:58:21  

Additional Information
 Jupiter MOID = 2.48069 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.936003663240339E-16 -2.188739133959992E-15 1.211428797550667E-13 5.579311024680351E-16 4.575632631746876E-14 -2.671583371909175E-16
q -2.188739133959992E-15 5.390684770426944E-15 -2.860333623443463E-13 -2.485129156652625E-15 -1.042198521089535E-13 6.865920662703396E-16
tp 1.211428797550667E-13 -2.860333623443463E-13 1.172492936882473E-9 -5.038483937915495E-12 3.340875318204358E-10 2.98401291992073E-13
node 5.579311024680351E-16 -2.485129156652625E-15 -5.038483937915495E-12 1.051963165639608E-8 -1.051589067775917E-8 7.798004296972123E-12
peri 4.575632631746876E-14 -1.042198521089535E-13 3.340875318204358E-10 -1.051589067775917E-8 1.061103808300042E-8 -7.718830341075523E-12
i -2.671583371909175E-16 6.865920662703396E-16 2.98401291992073E-13 7.798004296972123E-12 -7.718830341075523E-12 1.361587154082205E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

Alternate Designations
 1991 RG1 = 2002 PG84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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