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18690 (1998 GB10)
Classification: Main-belt Asteroid          SPK-ID: 2018690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06319889720863298 6.4394e-08  
a 3.04049732130383 2.3598e-08 au
q 2.848341243631625 2.0333e-07 au
i 24.1788193160921 6.7917e-06 deg
node 43.25702740373441 1.1557e-05 deg
peri 191.7127907617451 4.6632e-05 deg
M 99.26426022150108 4.6352e-05 deg
tp 2458862.543627326601
(2020-Jan-14.04362733)
0.00024884 TDB
period 1936.490472336056
5.30
2.2545e-05
6.172e-08
d
yr
n .1859033158917222 2.1643e-09 deg/d
Q 3.232653398976034 2.509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1338  
   data-arc span      10333 days (28.29 yr)  
   first obs. used      1993-04-25  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .527  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:12:01  

Additional Information
 Earth MOID = 1.84132 au 
 Jupiter MOID = 1.75252 au 
 T_jup = 3.103 
[ 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 13.22   n/a MPO636346  
diameter diameter 13.308 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18690 (1998 GB10)          Discovered 1998-Apr-02 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

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