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58185 Rokkosan (1991 RH1)
Classification: Main-belt Asteroid          SPK-ID: 2058185
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024037178457474 7.9398e-08  
a 2.299447739625776 5.2396e-09 au
q 1.834030968133519 1.8117e-07 au
i 5.157682475414934 5.8e-06 deg
node 359.0056863655437 3.0978e-05 deg
peri 6.278001921796942 3.2374e-05 deg
M 185.6577949084352 6.9963e-06 deg
tp 2460013.284961622067
(2023-Mar-09.78496162)
2.5337e-05 TDB
period 1273.602029223658
3.49
4.3531e-06
1.192e-08
d
yr
n .2826628662168849 9.6613e-10 deg/d
Q 2.764864511118033 6.3001e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10844 days (29.69 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-04-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54442  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:10:23  

Additional Information
 Earth MOID = .831416 au 
 Jupiter MOID = 2.69678 au 
 T_jup = 3.560 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457393.5 (2016-Jan-06.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034065778343541 7.973e-08  
q 1.8314930053324 1.8219e-07 au
tp 2457465.038996343865
(2016-Mar-17.53899634)
2.3515e-05 TDB
node 359.0934749549701 3.0919e-05 deg
peri 5.999879836471878 3.2278e-05 deg
i 5.164038446961242 5.805e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10844 days (29.69 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-04-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54442  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:10:23  

Additional Information
 Jupiter MOID = 2.69678 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.356919844699477E-15 -1.4523084690516E-14 -3.780508366220295E-13 5.942680946172249E-14 -3.77909152713549E-13 -1.573773951821591E-14
q -1.4523084690516E-14 3.319475121316096E-14 8.699455770307031E-13 -1.356860045764653E-13 8.644610640577918E-13 3.609135529976186E-14
tp -3.780508366220295E-13 8.699455770307031E-13 5.529596461951781E-10 -4.244376839893114E-12 2.104215011330211E-10 3.124461297728392E-13
node 5.942680946172249E-14 -1.356860045764653E-13 -4.244376839893114E-12 9.559621155182263E-10 -9.546560520395218E-10 4.356921304962478E-11
peri -3.77909152713549E-13 8.644610640577918E-13 2.104215011330211E-10 -9.546560520395218E-10 1.041850077208387E-9 -4.288260459046333E-11
i -1.573773951821591E-14 3.609135529976186E-14 3.124461297728392E-13 4.356921304962478E-11 -4.288260459046333E-11 3.369809479146785E-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 15.61   n/a MPCxxxxx  

58185 Rokkosan           Discovered 1991 Sept. 7 by T. Seki at Geisei.
Rokkosan is a 1000-meter-high mountain behind the city of Kobe. The summit is the birthplace of Japanese golf and commands a panoramic view of Osaka Bay and the spectacular night-time scene of Kobe City.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

Alternate Designations
 1991 RH1 = 1998 QX55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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