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JPL Small-Body Database Browser
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146945 (2002 EC20)
Classification: Main-belt Asteroid          SPK-ID: 2146945
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181444499847058 5.4736e-08  
a 3.044984547883402 2.563e-08 au
q 2.492488849550678 1.6396e-07 au
i .2176266090972319 5.5558e-06 deg
node 206.8034579424239 0.0015703 deg
peri 355.2563680146588 0.0015703 deg
M 54.08898648439991 1.7185e-05 deg
tp 2458308.903431111911
(2018-Jul-09.40343111)
9.0981e-05 TDB
period 1940.778920492219
5.31
2.4503e-05
6.709e-08
d
yr
n .1854925340536454 2.3419e-09 deg/d
Q 3.597480246216126 3.028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1994-11-01  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58533  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:58:17  

Additional Information
 Earth MOID = 1.48976 au 
 Jupiter MOID = 1.36402 au 
 T_jup = 3.213 
[ 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 MPO449801  

146945 (2002 EC20)          Discovered 2002-Mar-05 by Spacewatch at Kitt Peak
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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