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58181 (1991 CG1)
Classification: Main-belt Asteroid          SPK-ID: 2058181
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960626037861168 2.7277e-08  
a 2.555214818078316 9.4657e-09 au
q 2.054232747613012 6.7701e-08 au
i 4.61456151833982 4.0502e-06 deg
node 346.6065549965104 5.8047e-05 deg
peri 134.0524532402213 5.984e-05 deg
M 124.1152616411696 1.546e-05 deg
tp 2458686.145860644471
(2019-Jul-21.64586064)
6.3266e-05 TDB
period 1491.899446687945
4.08
8.29e-06
2.27e-08
d
yr
n .2413031258904273 1.3408e-09 deg/d
Q 3.056196888543619 1.1322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1991-01-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:39  

Additional Information
 Earth MOID = 1.07307 au 
 Jupiter MOID = 2.03056 au 
 T_jup = 3.406 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457247.5 (2015-Aug-13.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968880612475193 2.7264e-08  
q 2.0522951821191 6.7742e-08 au
tp 2457195.674988751599
(2015-Jun-22.17498875)
6.1414e-05 TDB
node 346.6302107995488 5.8027e-05 deg
peri 134.2888803974999 5.9799e-05 deg
i 4.616065140462344 4.05e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1846  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1991-01-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:39  

Additional Information
 Jupiter MOID = 2.03056 au 
 T_jup = 3.406 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.433424989255797E-16 -1.836331943015285E-15 -2.724778164633025E-13 -1.905790613878703E-15 -7.672717289054875E-14 -2.163592771967152E-16
q -1.836331943015285E-15 4.588933864828944E-15 7.390466361079699E-13 2.675017494671493E-15 2.077697499191046E-13 4.881310169028767E-16
tp -2.724778164633025E-13 7.390466361079699E-13 3.771629847379862E-9 2.949469876093109E-11 9.182883580126108E-10 1.513539600158282E-12
node -1.905790613878703E-15 2.675017494671493E-15 2.949469876093109E-11 3.367156920976342E-9 -3.34878195845994E-9 1.22936487399511E-10
peri -7.672717289054875E-14 2.077697499191046E-13 9.182883580126108E-10 -3.34878195845994E-9 3.575865539164652E-9 -1.221846681172628E-10
i -2.163592771967152E-16 4.881310169028767E-16 1.513539600158282E-12 1.22936487399511E-10 -1.221846681172628E-10 1.64021474980519E-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 14.41   n/a E2021B10  

58181 (1991 CG1)          Discovered 1991-Feb-07 by Endate, K., Watanabe, K. at Kitami
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 CG1 = 1998 WO31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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