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JPL Small-Body Database Browser
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212143 (2005 EM278)
Classification: Main-belt Asteroid          SPK-ID: 2212143
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2263805312383301 1.06e-07  
a 2.65026634900781 1.554e-08 au
q 2.050297644996353 2.7855e-07 au
i 5.029019834982406 1.0602e-05 deg
node 165.0028180608188 7.8591e-05 deg
peri 54.55501575392503 8.087e-05 deg
M 77.43815308365238 1.5555e-05 deg
tp 2458261.511319949350
(2018-May-23.01131995)
6.8316e-05 TDB
period 1575.914713337814
4.31
1.3861e-05
3.795e-08
d
yr
n .228438758108625 2.0092e-09 deg/d
Q 3.250235053019268 1.9058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      10048 days (27.51 yr)  
   first obs. used      1992-03-30  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6123  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:44:01  

Additional Information
 Earth MOID = 1.04794 au 
 Jupiter MOID = 1.73418 au 
 T_jup = 3.348 
[ 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 16.9   n/a MPO450006  

212143 (2005 EM278)          Discovered 2005-Mar-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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