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20318 (1998 GZ)
Classification: Main-belt Asteroid          SPK-ID: 2020318
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05618670234588447 4.6179e-08  
a 2.273985064777434 8.5048e-09 au
q 2.146217342803797 1.0621e-07 au
i 6.543304112058586 4.7996e-06 deg
node 31.86982627242855 2.8926e-05 deg
peri 174.3666414793179 4.466e-05 deg
M 206.4280700621242 3.6675e-05 deg
tp 2459734.804928443254
(2022-Jun-04.30492844)
0.00012929 TDB
period 1252.50606876779
3.43
7.0266e-06
1.924e-08
d
yr
n .28742375703949 1.6125e-09 deg/d
Q 2.40175278675107 8.9826e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8881 days (24.31 yr)  
   first obs. used      1996-10-08  
   last obs. used      2021-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52694  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:01  

Additional Information
 Earth MOID = 1.14031 au 
 Jupiter MOID = 2.5543 au 
 T_jup = 3.600 
[ 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 15.49   n/a E2021B10  

20318 (1998 GZ)          Discovered 1998-Apr-03 by Urata, T. at Oohira
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 GZ = 1996 TC31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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