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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06174905979475345 7.0246e-08  
a 3.038086172168177 2.4196e-08 au
q 2.850487207461351 2.2103e-07 au
i 24.19496997804052 7.1283e-06 deg
node 43.3866967517151 1.1884e-05 deg
peri 191.7658835862921 4.8825e-05 deg
M 311.1215821675593 4.9213e-05 deg
tp 2458863.111171889805
(2020-Jan-14.61117189)
0.00026477 TDB
period 1934.187440444999
5.30
2.3106e-05
6.326e-08
d
yr
n .1861246704803205 2.2235e-09 deg/d
Q 3.225685136875003 2.569e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      9513 days (26.05 yr)  
   first obs. used      1993-04-25  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52815  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:37:38  

Additional Information
 Earth MOID = 1.843 au 
 Jupiter MOID = 1.76237 au 
 T_jup = 3.104 
[ 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 13.2   n/a MPO474013  
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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