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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09847430848220567 4.4228e-08  
a 3.014862393015288 1.9573e-08 au
q 2.7179759036941 1.4148e-07 au
i 8.414386509521945 4.4383e-06 deg
node 99.8386086105981 3.1807e-05 deg
peri 263.1196739410969 3.9081e-05 deg
M 256.6844797755945 2.4026e-05 deg
tp 2459549.235092172428
(2021-Nov-30.73509217)
0.00012924 TDB
period 1912.051865518358
5.23
1.862e-05
5.098e-08
d
yr
n .1882794115014259 1.8335e-09 deg/d
Q 3.311748882336477 2.1501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      9924 days (27.17 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:18:05  

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

[ 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
1946-May-25 05:56 00:03 Juno 0.0294119420273449 0.0294025372602729 0.0294213497725443 4.70088075034329 4.70088066235132 2431965.747442664 2.65340477081535 663.256360244581 51.6074157681024 45.2053095509099 60637.7513423351 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 18:18:24 2020-Jun-23 18:18
1983-Nov-26 01:24 00:02 Psych 0.016130719184969 0.0161263330321825 0.0161351063596025 2.13029438203726 2.13029402994227 2445664.558434540 2.23756597049449 299.039030072487 35.7254109422762 43.5629262976678 46764.8318082517 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 18:18:24 2020-Jun-23 18:18

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