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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01971634904131025 3.8032e-08  
a 2.925312606525623 2.6515e-08 au
q 2.867636122120418 1.2017e-07 au
i 10.22778500550446 4.3087e-06 deg
node 185.9122946809768 2.4266e-05 deg
peri 250.9415191028825 0.00012295 deg
M 39.34633182400528 0.00011883 deg
tp 2459196.762964203450
(2020-Dec-13.26296420)
0.00060395 TDB
period 1827.497750194043
5.00
2.4847e-05
6.803e-08
d
yr
n .1969906665886595 2.6783e-09 deg/d
Q 2.982989090930826 2.7038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      6935 days (18.99 yr)  
   first obs. used      2002-02-15  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:34:06  

Additional Information
 Earth MOID = 1.89377 au 
 Jupiter MOID = 2.05075 au 
 T_jup = 3.254 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457852.5 (2017-Apr-09.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01730318483569814 3.7495e-08  
q 2.87537187646275 1.175e-07 au
tp 2457349.984941402922
(2015-Nov-23.48494140)
0.00070747 TDB
node 185.9908454115485 2.4211e-05 deg
peri 247.1675669516891 0.00014153 deg
i 10.23740603255083 4.3141e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      6935 days (18.99 yr)  
   first obs. used      2002-02-15  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:34:06  

Additional Information
 Jupiter MOID = 2.05075 au 
 T_jup = 3.254 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.405910416699123E-15 -4.301125711889682E-15 2.371651998874667E-12 3.729278400848906E-15 4.674781878850294E-13 -2.357166748183784E-15
q -4.301125711889682E-15 1.380522587241686E-14 -1.270005710404147E-11 -1.263822150528511E-14 -2.474667336155397E-12 8.737992977260787E-15
tp 2.371651998874667E-12 -1.270005710404147E-11 5.005200630698121E-7 1.048417522678279E-10 9.867758738441103E-8 -1.119065372420054E-11
node 3.729278400848906E-15 -1.263822150528511E-14 1.048417522678279E-10 5.861642967057385E-10 -5.556845053150218E-10 -9.790814526128465E-12
peri 4.674781878850294E-13 -2.474667336155397E-12 9.867758738441103E-8 -5.556845053150218E-10 2.003180473567584E-8 7.401365225913869E-12
i -2.357166748183784E-15 8.737992977260787E-15 -1.119065372420054E-11 -9.790814526128465E-12 7.401365225913869E-12 1.861185904925744E-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 15.81   n/a MPCxxxxx  

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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