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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06248461766832861 7.0265e-08  
a 3.040368423887033 2.3763e-08 au
q 2.850392165349593 2.2089e-07 au
i 24.18473188243622 7.1264e-06 deg
node 43.37783479844146 1.1888e-05 deg
peri 191.879790148467 4.8385e-05 deg
M 25.45079857243166 4.8862e-05 deg
tp 2458863.605291889533
(2020-Jan-15.10529189)
0.00026265 TDB
period 1936.367331638487
5.30
2.2702e-05
6.215e-08
d
yr
n .1859151381651231 2.1797e-09 deg/d
Q 3.230344682424474 2.5248e-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 = 1.8429 au 
 Jupiter MOID = 1.75741 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 13.2   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1963-Dec-02 14:11 00:02 Jupiter 1.86986450176228 1.86986319582375 1.86986580770092 6.36726179249351 6.29571684991797 2438366.091187009 1.51236610886294 189.329080975161 64.8630581408003 88.1145925662382 2836138.96407585 T 24 CATAB v2.0e-lin.ifort 2019-May-30 02:37:46 2019-May-30 02:37
2011-Oct-04 13:46 < 00:01 Jupiter 1.76324949032615 1.76324881899129 1.76325016166331 6.50952923449512 6.43531033484973 2455839.073425937 0.220250990545836 166.906248660906 25.1177667626392 -82.592457768831 2938589.79736304 T 24 CATAB v2.0e-lin.ifort 2019-May-30 02:37:46 2019-May-30 02:37
2059-Jul-29 05:18 00:01 Jupiter 1.76577986815057 1.765779023615 1.76578071269948 6.52764361983357 6.45373970998191 2473303.721169856 1.43095057363626 316.87548241036 25.1236682867573 -83.9778670404901 2822315.30542632 T 24 CATAB v2.0e-lin.ifort 2019-May-30 02:37:46 2019-May-30 02:37
2107-May-31 21:17 00:03 Jupiter 1.87613880925984 1.87613638480143 1.87614123384974 6.43150383577446 6.36091969148542 2490776.386659273 3.02032522173592 843.109408277812 38.4799403788566 -82.1538180418478 2560540.91145862 T 24 CATAB v2.0e-lin.ifort 2019-May-30 02:37:46 2019-May-30 02:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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