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JPL Small-Body Database Browser
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146940 (2002 EY4)
Classification: Main-belt Asteroid          SPK-ID: 2146940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07165873862341191 4.2637e-08  
a 3.13056105818342 2.6636e-08 au
q 2.906229001570423 1.3137e-07 au
i 1.869718080424283 4.5433e-06 deg
node 153.2934155024075 0.00013914 deg
peri 295.93423643 0.00014242 deg
M 104.75322266032 3.1763e-05 deg
tp 2458011.796542204375
(2017-Sep-15.29654220)
0.00017625 TDB
period 2023.166824123916
5.54
2.5821e-05
7.069e-08
d
yr
n .1779388608529054 2.271e-09 deg/d
Q 3.354893114796418 2.8545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      7181 days (19.66 yr)  
   first obs. used      1999-09-03  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57924  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:22:38  

Additional Information
 Earth MOID = 1.92336 au 
 Jupiter MOID = 1.78699 au 
 T_jup = 3.209 
[ show covariance matrix ]

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 15.6   n/a MPO436738  

146940 (2002 EY4)          Discovered 2002-Mar-10 by Asiago-DLR Asteroid Survey at Cima Ekar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2002 EY4 = 1999 RG6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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