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308203 (2005 EC46)
Classification: Main-belt Asteroid          SPK-ID: 2308203
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566132115745527 4.2272e-08  
a 2.380620684517473 1.5202e-08 au
q 2.007784033574382 9.6059e-08 au
i 1.478592438121955 4.1644e-06 deg
node 275.8446215263204 0.00022383 deg
peri 195.3146594706296 0.00022511 deg
M 89.49141991917475 2.4393e-05 deg
tp 2458666.987105860025
(2019-Jul-02.48710586)
8.8958e-05 TDB
period 1341.632996759116
3.67
1.2851e-05
3.518e-08
d
yr
n .2683297152571719 2.5701e-09 deg/d
Q 2.753457335460565 1.7582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7054 days (19.31 yr)  
   first obs. used      2001-01-03  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:22  

Additional Information
 Earth MOID = 1.02447 au 
 Jupiter MOID = 2.35335 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457388.5 (2016-Jan-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566031736785239 4.2508e-08  
q 2.008332442493697 9.6704e-08 au
tp 2457326.384679970680
(2015-Oct-30.88467997)
8.1839e-05 TDB
node 275.9360458997821 0.00022385 deg
peri 195.5959014915105 0.00022513 deg
i 1.478257447763543 4.1653e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7054 days (19.31 yr)  
   first obs. used      2001-01-03  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:11:22  

Additional Information
 Jupiter MOID = 2.35335 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.806920508107459E-15 -4.081067162203476E-15 1.358941033691383E-12 1.240502216562244E-14 3.566584374789301E-13 -5.776323461822127E-16
q -4.081067162203476E-15 9.351723039580959E-15 -2.741337206212629E-12 -2.508161344799964E-14 -7.086056575407549E-13 1.269728948396015E-15
tp 1.358941033691383E-12 -2.741337206212629E-12 6.69757221662469E-9 2.022821675199995E-11 1.995070169811718E-9 -1.713251461749128E-12
node 1.240502216562244E-14 -2.508161344799964E-14 2.022821675199995E-11 5.01086697486643E-8 -5.00857093532927E-8 1.546677316662044E-10
peri 3.566584374789301E-13 -7.086056575407549E-13 1.995070169811718E-9 -5.00857093532927E-8 5.068179208309643E-8 -1.551229808635276E-10
i -5.776323461822127E-16 1.269728948396015E-15 -1.713251461749128E-12 1.546677316662044E-10 -1.551229808635276E-10 1.735000554135234E-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 17.2   n/a MPO471232  

308203 (2005 EC46)          Discovered 2005-Mar-03 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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