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118367 (1999 GC4)
Classification: Main-belt Asteroid          SPK-ID: 2118367
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2020151560984527 3.1678e-08  
a 2.591998180816161 1.2025e-08 au
q 2.068375263711679 7.9318e-08 au
i 11.88425705952648 4.7863e-06 deg
node 198.4110862489099 2.1892e-05 deg
peri 319.1278737497877 2.5964e-05 deg
M 102.9657827436781 1.4663e-05 deg
tp 2458764.545775908400
(2019-Oct-08.04577591)
6.1229e-05 TDB
period 1524.229860551533
4.17
1.0607e-05
2.904e-08
d
yr
n .236184849357128 1.6436e-09 deg/d
Q 3.115621097920644 1.4454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      7768 days (21.27 yr)  
   first obs. used      1999-04-07  
   last obs. used      2020-07-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:56  

Additional Information
 Earth MOID = 1.09087 au 
 Jupiter MOID = 1.92755 au 
 T_jup = 3.360 
[ 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 15.70   n/a E2021B55  

118367 (1999 GC4)          Discovered 1999-Apr-12 by Zoltowski, F. B. at Woomera
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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