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18014 (1999 JC121)
Classification: Main-belt Asteroid          SPK-ID: 2018014
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09847430518408949 4.1807e-08  
a 3.014862392507933 1.9401e-08 au
q 2.717975913180073 1.3536e-07 au
i 8.414387139847564 4.4069e-06 deg
node 99.83862450100087 2.9005e-05 deg
peri 263.1196588214131 3.6865e-05 deg
M 256.6844795589095 2.4023e-05 deg
tp 2459549.235093184782
(2021-Nov-30.73509318)		 0.00012923 TDB
period 1912.051865035704
5.23		 1.8457e-05
5.053e-08		 d
yr
n .1882794115489528 1.8174e-09 deg/d
Q 3.311748871835793 2.1312e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      9984 days (27.33 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:17:27  

Additional Information
 Earth MOID = 1.73167 au 
 Jupiter MOID = 2.14934 au 
 T_jup = 3.225 
[ 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 14.0   n/a MPO474005  
diameter diameter 5.305 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.300   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18014 (1999 JC121)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JC121 = 1998 FC94 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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