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226013 (2002 ER61)
Classification: Main-belt Asteroid          SPK-ID: 2226013
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01929551036014775 3.8996e-08  
a 2.924044040202613 3.3463e-08 au
q 2.867623118131355 1.2787e-07 au
i 10.22861831731771 5.7276e-06 deg
node 185.9253533062166 2.5619e-05 deg
peri 251.2495582234453 0.00016461 deg
M 321.0041079514064 0.00016473 deg
tp 2459198.329316132412
(2020-Dec-14.82931613)
0.00083652 TDB
period 1826.309133252329
5.00
3.1351e-05
8.583e-08
d
yr
n .1971188740423723 3.3838e-09 deg/d
Q 2.980464962273871 3.4109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      6482 days (17.75 yr)  
   first obs. used      2002-02-15  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:33:46  

Additional Information
 Earth MOID = 1.89429 au 
 Jupiter MOID = 2.05319 au 
 T_jup = 3.255 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0171711173098906 3.9228e-08  
q 2.873598257772384 1.2915e-07 au
tp 2457337.428822213789
(2015-Nov-10.92882221)
0.00093186 TDB
node 185.9933171496039 2.5567e-05 deg
peri 244.5991074278783 0.00018473 deg
i 10.23732722940654 5.7361e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      6482 days (17.75 yr)  
   first obs. used      2002-02-15  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56952  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:33:46  

Additional Information
 Jupiter MOID = 2.05319 au 
 T_jup = 3.255 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.538821694114721E-15 -4.915898277416233E-15 -5.007055522621177E-12 -5.344246558188382E-15 -9.643736943222799E-13 1.108528530273421E-15
q -4.915898277416233E-15 1.668022719272065E-14 2.08586412102242E-11 1.644631753557448E-14 4.043418079905183E-12 -1.07964821407598E-15
tp -5.007055522621177E-12 2.08586412102242E-11 8.683661343847893E-7 1.199664021557863E-10 1.705100003847375E-7 1.921399358029047E-11
node -5.344246558188382E-15 1.644631753557448E-14 1.199664021557863E-10 6.536704093449753E-10 -6.191175288803728E-10 -3.874923187068303E-11
peri -9.643736943222799E-13 4.043418079905183E-12 1.705100003847375E-7 -6.191175288803728E-10 3.412508976213965E-8 4.180999520690736E-11
i 1.108528530273421E-15 -1.07964821407598E-15 1.921399358029047E-11 -3.874923187068303E-11 4.180999520690736E-11 3.290235737087692E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO454622  

226013 (2002 ER61)          Discovered 2002-Mar-13 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2002 ER61 = 2004 RB102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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