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410521 (2008 EQ158)
Classification: Main-belt Asteroid          SPK-ID: 2410521
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076683698981413 9.0557e-08  
a 2.776080993218125 6.2753e-08 au
q 2.477184877973116 2.643e-07 au
i 5.160813699113689 1.1275e-05 deg
node 151.7800884312206 0.00010137 deg
peri 62.52623168443249 0.00011261 deg
M 213.4995329964163 5.3428e-05 deg
tp 2459688.016513889851
(2022-Apr-18.51651389)
0.00026294 TDB
period 1689.454989889497
4.63
5.7285e-05
1.568e-07
d
yr
n .2130864699884941 7.2252e-09 deg/d
Q 3.074977108463134 6.9509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      3304 days (9.05 yr)  
   first obs. used      2008-03-10  
   last obs. used      2017-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55398  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 17:31:28  

Additional Information
 Earth MOID = 1.47629 au 
 Jupiter MOID = 1.89954 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456707.5 (2014-Feb-19.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076905968646718 9.0336e-08  
q 2.477355382534772 2.638e-07 au
tp 2456313.005528020679
(2013-Jan-20.50552802)
0.00022257 TDB
node 151.8268061810497 0.00010128 deg
peri 63.22951295718994 0.00011262 deg
i 5.162441544208954 1.1282e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      3304 days (9.05 yr)  
   first obs. used      2008-03-10  
   last obs. used      2017-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55398  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 17:31:28  

Additional Information
 Jupiter MOID = 1.89954 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.160625495242842E-15 -2.329203665513699E-14 -4.290122131240988E-12 2.605760704491169E-14 -8.364851537571608E-13 -1.073684224431983E-14
q -2.329203665513699E-14 6.959270662883973E-14 1.360762665260469E-11 -8.298043085934077E-14 2.874374146648566E-12 3.461976510832862E-14
tp -4.290122131240988E-12 1.360762665260469E-11 4.953750470018249E-8 -5.079218064087673E-11 1.101312312321091E-8 9.050855970436219E-12
node 2.605760704491169E-14 -8.298043085934077E-14 -5.079218064087673E-11 1.025778513740894E-8 -1.022674840674699E-8 1.331079410601185E-10
peri -8.364851537571608E-13 2.874374146648566E-12 1.101312312321091E-8 -1.022674840674699E-8 1.268434949124797E-8 -1.306189659102668E-10
i -1.073684224431983E-14 3.461976510832862E-14 9.050855970436219E-12 1.331079410601185E-10 -1.306189659102668E-10 1.272737108280173E-10

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 17.5   n/a MPO360950  

410521 (2008 EQ158)          Discovered 2008-Mar-10 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-10-09

[ show close-approach data ]
Alternate Designations
 2008 EQ158 = 2012 BL138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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