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146272 (2001 EY5)
Classification: Main-belt Asteroid          SPK-ID: 2146272
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1535410875565329 3.9356e-08  
a 2.308073275474623 1.0808e-08 au
q 1.953689194598081 9.2959e-08 au
i 7.147602295302285 4.8737e-06 deg
node 27.60842717620461 3.5756e-05 deg
peri 263.4933468457242 3.9435e-05 deg
M 70.94421530679809 1.6566e-05 deg
tp 2458748.101189266077
(2019-Sep-21.60118927)
5.8838e-05 TDB
period 1280.774922539815
3.51
8.9965e-06
2.463e-08
d
yr
n .2810798319552583 1.9744e-09 deg/d
Q 2.662457356351166 1.2468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      7198 days (19.71 yr)  
   first obs. used      2001-03-02  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:06:46  

Additional Information
 Earth MOID = .95349 au 
 Jupiter MOID = 2.52965 au 
 T_jup = 3.560 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457188.5 (2015-Jun-15.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532313459600582 3.9306e-08  
q 1.954710552255567 9.2822e-08 au
tp 2457467.815730760538
(2016-Mar-20.31573076)
5.9428e-05 TDB
node 27.63599694893416 3.5735e-05 deg
peri 263.6922895872569 3.9436e-05 deg
i 7.149573343483175 4.8746e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      7198 days (19.71 yr)  
   first obs. used      2001-03-02  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:06:46  

Additional Information
 Jupiter MOID = 2.52965 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.544979288945579E-15 -3.631175322865314E-15 8.601330796417896E-14 1.186002212298247E-14 2.266691828184727E-14 2.083436154244442E-16
q -3.631175322865314E-15 8.615836619074569E-15 -2.617680177325456E-13 -2.909085235960304E-14 -7.573633121908597E-14 -9.682492718091645E-17
tp 8.601330796417896E-14 -2.617680177325456E-13 3.531647088408794E-9 -1.975362168697393E-11 1.009350977790107E-9 4.924547231881324E-12
node 1.186002212298247E-14 -2.909085235960304E-14 -1.975362168697393E-11 1.277002458994664E-9 -1.271378064826276E-9 -6.281121383441981E-12
peri 2.266691828184727E-14 -7.573633121908597E-14 1.009350977790107E-9 -1.271378064826276E-9 1.555222222177827E-9 7.543206869393806E-12
i 2.083436154244442E-16 -9.682492718091645E-17 4.924547231881324E-12 -6.281121383441981E-12 7.543206869393806E-12 2.376181689285695E-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 15.6   n/a MPO436735  

146272 (2001 EY5)          Discovered 2001-Mar-02 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

Alternate Designations
 2001 EY5 = 2002 RV51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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