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215870 (2005 EM161)
Classification: Main-belt Asteroid          SPK-ID: 2215870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419345150963806 4.9173e-08  
a 2.42199704273319 1.5241e-08 au
q 2.078232066907987 1.2138e-07 au
i 2.124256445857692 5.5756e-06 deg
node 58.81388107320448 0.00018943 deg
peri 179.428450549385 0.00019105 deg
M 334.6085820018151 2.6445e-05 deg
tp 2459097.605380395044
(2020-Sep-05.10538039)
0.00010131 TDB
period 1376.761902179504
3.77
1.2996e-05
3.558e-08
d
yr
n .2614831216858169 2.4682e-09 deg/d
Q 2.765762018558393 1.7405e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      7468 days (20.45 yr)  
   first obs. used      1999-11-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53658  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:22:35  

Additional Information
 Earth MOID = 1.06613 au 
 Jupiter MOID = 2.23561 au 
 T_jup = 3.498 
[ 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 17.3   n/a MPO418157  

215870 (2005 EM161)          Discovered 2005-Mar-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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