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(2018 EC3)
Classification: Outer Main-belt Asteroid          SPK-ID: 3564891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5111328350114189 2.3296e-07  
a 3.570454746059938 1.8588e-07 au
q 1.745478089426346 7.8378e-07 au
i 24.91206484361798 3.6939e-05 deg
node 9.224259144309144 3.8747e-05 deg
peri 208.2172442020386 7.2153e-05 deg
M 131.7889126951236 2.6974e-05 deg
tp 2458298.388746630807
(2018-Jun-28.88874663)
0.00020733 TDB
period 2464.244104996898
6.75
0.00019243
5.268e-07
d
yr
n .1460894232312481 1.1408e-08 deg/d
Q 5.39543140269353 2.8088e-07 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      3020 days (8.27 yr)  
   first obs. used      2011-05-01  
   last obs. used      2019-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:24:08  

Additional Information
 Earth MOID = .770138 au 
 Jupiter MOID = .1878 au 
 T_jup = 2.749 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458121.5 (2018-Jan-03.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5115868626486916 2.3303e-07  
q 1.744257952737096 7.8348e-07 au
tp 2458298.895342804784
(2018-Jun-29.39534280)
0.00020713 TDB
node 9.233485983367283 3.8732e-05 deg
peri 208.2540236513811 7.2104e-05 deg
i 24.92050894455081 3.6949e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      3020 days (8.27 yr)  
   first obs. used      2011-05-01  
   last obs. used      2019-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:24:08  

Additional Information
 Jupiter MOID = .1878 au 
 T_jup = 2.749 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.430225081040379E-14 -1.817355416677548E-13 -4.453991414074228E-11 3.697754326781687E-12 -1.303190396938533E-11 -4.8294709538259E-12
q -1.817355416677548E-13 6.138392169717567E-13 1.499009221281756E-10 -1.251351828101755E-11 4.379914775514135E-11 1.634949424381442E-11
tp -4.453991414074228E-11 1.499009221281756E-10 4.290407077163403E-8 -3.362672060313899E-9 1.324127059268811E-8 4.433444354253954E-9
node 3.697754326781687E-12 -1.251351828101755E-11 -3.362672060313899E-9 1.500179198389253E-9 -2.128793671390185E-9 -1.283709912199516E-9
peri -1.303190396938533E-11 4.379914775514135E-11 1.324127059268811E-8 -2.128793671390185E-9 5.198970511806148E-9 2.18514692297118E-9
i -4.8294709538259E-12 1.634949424381442E-11 4.433444354253954E-9 -1.283709912199516E-9 2.18514692297118E-9 1.365252992131371E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a E2018G48  

[ show close-approach data ]
Alternate Designations
 2018 EC3 = 2011 JW1 = 2018 CN10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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