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46641 (1995 EY)
Classification: Main-belt Asteroid          SPK-ID: 2046641
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2729122703617148 3.8235e-08  
a 2.637809518672646 1.1463e-08 au
q 1.917918934149952 1.0465e-07 au
i 4.457122476891198 4.2451e-06 deg
node 324.6948492811726 4.603e-05 deg
peri 143.4465959284086 4.6878e-05 deg
M 355.3144663925562 7.7681e-06 deg
tp 2459020.866674848723
(2020-Jun-20.36667485)
3.3827e-05 TDB
period 1564.817064569121
4.28
1.02e-05
2.793e-08
d
yr
n .2300588408390904 1.4997e-09 deg/d
Q 3.357700103195339 1.4592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1138  
   data-arc span      23480 days (64.28 yr)  
   first obs. used      1955-10-24  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:32:02  

Additional Information
 Earth MOID = .93678 au 
 Jupiter MOID = 1.7912 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456702.5 (2014-Feb-14.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2716963293243762 3.8533e-08  
q 1.922078989493911 1.0553e-07 au
tp 2457456.905608858430
(2016-Mar-09.40560886)
3.0823e-05 TDB
node 324.7911191226254 4.5984e-05 deg
peri 143.5126821908933 4.6839e-05 deg
i 4.45822961056709 4.2459e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1138  
   data-arc span      23480 days (64.28 yr)  
   first obs. used      1955-10-24  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:32:02  

Additional Information
 Jupiter MOID = 1.7912 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.484774934409549E-15 -4.055978451347246E-15 2.312357186958082E-13 -9.182730578938123E-15 1.602025726598552E-13 -1.301516056303466E-15
q -4.055978451347246E-15 1.113752836267607E-14 -5.705570779908086E-13 2.493540067008135E-14 -4.31540727055828E-13 3.878292119833027E-15
tp 2.312357186958082E-13 -5.705570779908086E-13 9.500485209478057E-10 -6.000591182357823E-12 2.705349860499409E-10 1.791674870581332E-12
node -9.182730578938123E-15 2.493540067008135E-14 -6.000591182357823E-12 2.114509774540223E-9 -2.10989199141656E-9 2.565007756569928E-11
peri 1.602025726598552E-13 -4.31540727055828E-13 2.705349860499409E-10 -2.10989199141656E-9 2.193855639346769E-9 -2.522838294319825E-11
i -1.301516056303466E-15 3.878292119833027E-15 1.791674870581332E-12 2.565007756569928E-11 -2.522838294319825E-11 1.802756103245434E-11

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 15.0   n/a MPO502466  

46641 (1995 EY)          Discovered 1995-Mar-05 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 EY = 1991 GH14 = 1998 XS46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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