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46094 (2001 EX21)
Classification: Main-belt Asteroid          SPK-ID: 2046094
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 .08851740417367553 3.9378e-08  
a 3.064456235356012 2.105e-08 au
q 2.793198524198464 1.1986e-07 au
i 10.48505798713725 4.5784e-06 deg
node 206.1505529424149 2.3307e-05 deg
peri 3.261521120847275 3.3732e-05 deg
M 167.5542210057511 2.4877e-05 deg
tp 2458088.528147620676
(2017-Dec-01.02814762)
0.00013372 TDB
period 1959.42462616497
5.36
2.0189e-05
5.527e-08
d
yr
n .1837274040515659 1.8931e-09 deg/d
Q 3.335713946513561 2.2913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      10418 days (28.52 yr)  
   first obs. used      1991-05-14  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58143  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:51:59  

Additional Information
 Earth MOID = 1.78824 au 
 Jupiter MOID = 1.62803 au 
 T_jup = 3.201 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457128.5 (2015-Apr-16.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08800025654651247 3.9379e-08  
q 2.79569143349852 1.1983e-07 au
tp 2458096.345716061469
(2017-Dec-08.84571606)
0.0001347 TDB
node 206.1804326216671 2.3289e-05 deg
peri 4.790049508984724 3.3842e-05 deg
i 10.48651710270113 4.5812e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      10418 days (28.52 yr)  
   first obs. used      1991-05-14  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58143  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:51:59  

Additional Information
 Jupiter MOID = 1.62803 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.550696152894572E-15 -4.658018877686748E-15 -4.699811079161749E-13 2.418405407962064E-15 -1.103108919083132E-13 -9.699213166031168E-16
q -4.658018877686748E-15 1.435919999830893E-14 1.742718142710062E-12 -6.572966234021228E-15 3.558223631387014E-13 3.93456579472171E-15
tp -4.699811079161749E-13 1.742718142710062E-12 1.814312118364192E-8 1.421788321385948E-11 3.320196067245744E-9 -5.181587191598447E-14
node 2.418405407962064E-15 -6.572966234021228E-15 1.421788321385948E-11 5.423738139613679E-10 -5.3049483241278E-10 -1.175273953562645E-11
peri -1.103108919083132E-13 3.558223631387014E-13 3.320196067245744E-9 -5.3049483241278E-10 1.145276698784351E-9 1.149492946466163E-11
i -9.699213166031168E-16 3.93456579472171E-15 -5.181587191598447E-14 -1.175273953562645E-11 1.149492946466163E-11 2.098701236234797E-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 14.4   n/a MPO412493  

46094 (2001 EX21)          Discovered 2001-Mar-15 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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