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154993 (2005 EA94)
Classification: Apollo [NEO]          SPK-ID: 2154993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6635833299552367 4.913e-08  
a 1.516331035188375 3.0828e-09 au
q .5101190375436019 7.4415e-08 au
i 10.32844761269321 5.2091e-06 deg
node 104.1161965973476 3.5009e-05 deg
peri 308.9901801017658 3.4037e-05 deg
M 79.94372581197459 6.464e-06 deg
tp 2458849.049278428790
(2019-Dec-31.54927843)
1.2068e-05 TDB
period 682.0079901438478
1.87
2.0799e-06
5.694e-09
d
yr
n .5278530533404301 1.6097e-09 deg/d
Q 2.522543032833148 5.1285e-09 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      6562 days (17.97 yr)  
   first obs. used      2002-06-01  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 09:00:10  

Additional Information
 Earth MOID = .074999 au 
 Jupiter MOID = 2.89953 au 
 T_jup = 4.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457609.5 (2016-Aug-09.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6636426968509352 4.9197e-08  
q .5101759024283212 7.4456e-08 au
tp 2457484.380796508705
(2016-Apr-05.88079651)
1.0893e-05 TDB
node 104.2190997488041 3.5092e-05 deg
peri 308.8506708686353 3.4114e-05 deg
i 10.31788497798971 5.2016e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      6562 days (17.97 yr)  
   first obs. used      2002-06-01  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 09:00:10  

Additional Information
 Jupiter MOID = 2.89953 au 
 T_jup = 4.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.420336008323561E-15 -3.66263692405952E-15 3.214498401472566E-13 1.221147367793961E-13 -1.65258993117719E-13 -2.322919794241336E-14
q -3.66263692405952E-15 5.543697292525692E-15 -4.864145747955851E-13 -1.75882696330522E-13 2.420781848767084E-13 3.369484784130695E-14
tp 3.214498401472566E-13 -4.864145747955851E-13 1.186574377918074E-10 1.052544495638151E-10 -8.018772845396061E-11 -2.020343551850466E-11
node 1.221147367793961E-13 -1.75882696330522E-13 1.052544495638151E-10 1.231455825554614E-9 -1.184344252436435E-9 -4.798365058771212E-11
peri -1.65258993117719E-13 2.420781848767084E-13 -8.018772845396061E-11 -1.184344252436435E-9 1.163794064731876E-9 4.146637922993046E-11
i -2.322919794241336E-14 3.369484784130695E-14 -2.020343551850466E-11 -4.798365058771212E-11 4.146637922993046E-11 2.705688668945981E-11

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 17.8   n/a MPO417827  
diameter diameter 0.828 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.195   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

154993 (2005 EA94)          Discovered 2005-Mar-08 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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