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46418 (2002 JS12)
Classification: Main-belt Asteroid          SPK-ID: 2046418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073282970260081 3.2985e-08  
a 2.243448409392791 6.7183e-09 au
q 1.778318071207677 7.2151e-08 au
i 7.391016623741206 3.7848e-06 deg
node 87.74361424174052 2.8041e-05 deg
peri 195.3785262992324 2.9475e-05 deg
M 219.8956614133039 9.0759e-06 deg
tp 2459874.163042598363
(2022-Oct-21.66304260)
3.1543e-05 TDB
period 1227.36167252239
3.36
5.5132e-06
1.509e-08
d
yr
n .2933120758611865 1.3175e-09 deg/d
Q 2.708578747577904 8.1112e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      8463 days (23.17 yr)  
   first obs. used      1998-03-03  
   last obs. used      2021-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:55  

Additional Information
 Earth MOID = .762842 au 
 Jupiter MOID = 2.43944 au 
 T_jup = 3.593 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456761.5 (2014-Apr-14.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2075977279623677 3.3054e-08  
q 1.77788520540712 7.2305e-08 au
tp 2456191.409396595818
(2012-Sep-20.90939660)
3.0573e-05 TDB
node 87.80158224647542 2.7996e-05 deg
peri 195.0867249716681 2.9431e-05 deg
i 7.396811878607291 3.7884e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1331  
   data-arc span      8463 days (23.17 yr)  
   first obs. used      1998-03-03  
   last obs. used      2021-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:55  

Additional Information
 Jupiter MOID = 2.43944 au 
 T_jup = 3.593 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.092586356623663E-15 -2.384450631120366E-15 -1.859771412039309E-13 -1.961105441087285E-15 -4.15018482571999E-14 -4.037058688269179E-16
q -2.384450631120366E-15 5.22797323894816E-15 3.860482279995252E-13 4.350212860709967E-15 8.787687779965562E-14 9.453525480034147E-16
tp -1.859771412039309E-13 3.860482279995252E-13 9.347143784958703E-10 1.451313321417708E-12 2.87534698841379E-10 5.43938685590016E-13
node -1.961105441087285E-15 4.350212860709967E-15 1.451313321417708E-12 7.837940677374954E-10 -7.763909855294005E-10 -1.570319051616545E-11
peri -4.15018482571999E-14 8.787687779965562E-14 2.87534698841379E-10 -7.763909855294005E-10 8.662026291772771E-10 1.572454195068259E-11
i -4.037058688269179E-16 9.453525480034147E-16 5.43938685590016E-13 -1.570319051616545E-11 1.572454195068259E-11 1.435223654396085E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO337629  
diameter diameter 3.133 km 0.672 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.185   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

46418 (2002 JS12)          Discovered 2002-May-06 by Yeung, W. K. Y. at Desert Eagle
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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