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91029 (1998 EY)
Classification: Main-belt Asteroid          SPK-ID: 2091029
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1987520337717016 5.5833e-08  
a 2.540281822699554 1.2165e-08 au
q 2.035395644084733 1.4508e-07 au
i 4.717538921691129 4.5115e-06 deg
node 187.0259604161546 6.7004e-05 deg
peri 279.2128773297551 6.7748e-05 deg
M 312.6992441390701 1.3407e-05 deg
tp 2459590.806289158554
(2022-Jan-11.30628916)
5.5853e-05 TDB
period 1478.840302314446
4.05
1.0623e-05
2.908e-08
d
yr
n .2434339931340695 1.7486e-09 deg/d
Q 3.045168001314376 1.4583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      540  
   data-arc span      10289 days (28.17 yr)  
   first obs. used      1992-10-02  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54081  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:43:08  

Additional Information
 Earth MOID = 1.05874 au 
 Jupiter MOID = 2.11788 au 
 T_jup = 3.413 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO280376  

91029 (1998 EY)          Discovered 1998-Mar-02 by ODAS at Caussols
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 EY = 2002 EK15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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