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46389 (2001 YJ45)
Classification: Main-belt Asteroid          SPK-ID: 2046389
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04343553053757301 3.357e-08  
a 2.543818936868745 1.0168e-08 au
q 2.433326811754327 8.3046e-08 au
i 6.405226770024631 3.3635e-06 deg
node 75.89269906440238 3.6622e-05 deg
peri 135.3815562216673 5.8553e-05 deg
M 169.2169371779071 4.593e-05 deg
tp 2458699.923128936657
(2019-Aug-04.42312894)
0.00018884 TDB
period 1481.930105608505
4.06
8.8855e-06
2.433e-08
d
yr
n .2429264367040968 1.4566e-09 deg/d
Q 2.654311061983164 1.061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1112  
   data-arc span      10722 days (29.36 yr)  
   first obs. used      1991-05-13  
   last obs. used      2020-09-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:51:57  

Additional Information
 Earth MOID = 1.43066 au 
 Jupiter MOID = 2.31582 au 
 T_jup = 3.434 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457230.5 (2015-Jul-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04169153638633286 3.3667e-08  
q 2.438258607912012 8.3136e-08 au
tp 2457214.626941069232
(2015-Jul-11.12694107)
0.000196 TDB
node 75.94892432751278 3.6569e-05 deg
peri 134.8990777028227 5.9881e-05 deg
i 6.409466261526165 3.3653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1112  
   data-arc span      10722 days (29.36 yr)  
   first obs. used      1991-05-13  
   last obs. used      2020-09-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:51:57  

Additional Information
 Jupiter MOID = 2.31582 au 
 T_jup = 3.434 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.133460300853345E-15 -2.78143667849087E-15 -1.310152597570622E-12 -1.284065797343398E-14 -3.163612235415989E-13 -1.816926754907686E-15
q -2.78143667849087E-15 6.911669699017925E-15 3.334194507374463E-12 3.179871742874213E-14 8.046510128257997E-13 4.686206530649379E-15
tp -1.310152597570622E-12 3.334194507374463E-12 3.841538609253018E-8 1.384392258373654E-10 9.316309274537476E-9 -1.432616426573331E-12
node -1.284065797343398E-14 3.179871742874213E-14 1.384392258373654E-10 1.337307473534673E-9 -1.29448817605505E-9 1.216642922125201E-11
peri -3.163612235415989E-13 8.046510128257997E-13 9.316309274537476E-9 -1.29448817605505E-9 3.585756036798487E-9 -1.24179547454023E-11
i -1.816926754907686E-15 4.686206530649379E-15 -1.432616426573331E-12 1.216642922125201E-11 -1.24179547454023E-11 1.132552740911872E-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 15.17   n/a E2021B10  
diameter diameter 2.944 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46389 (2001 YJ45)          Discovered 2001-Dec-18 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 YJ45 = 1999 JG67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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