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136440 (2005 EK56)
Classification: Main-belt Asteroid          SPK-ID: 2136440
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983897701808595 3.5308e-08  
a 2.361029229599934 9.2878e-09 au
q 1.892625183349312 8.5801e-08 au
i 1.297461156554301 4.0198e-06 deg
node 260.2445246283226 0.00016103 deg
peri 23.24361248066715 0.00016139 deg
M 335.8543899554206 9.6024e-06 deg
tp 2459089.376338437044
(2020-Aug-27.87633844)
3.5316e-05 TDB
period 1325.105548307274
3.63
7.8191e-06
2.141e-08
d
yr
n .2716764717043664 1.6031e-09 deg/d
Q 2.829433275850557 1.113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:52:40  

Additional Information
 Earth MOID = .87625 au 
 Jupiter MOID = 2.3219 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457487.5 (2016-Apr-09.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197827794034561 3.5323e-08  
q 1.894548091705283 8.5774e-08 au
tp 2457763.650706912104
(2017-Jan-10.15070691)
3.6659e-05 TDB
node 260.2809799195177 0.00016113 deg
peri 23.04481830691066 0.0001615 deg
i 1.296636279233187 4.0187e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:52:40  

Additional Information
 Jupiter MOID = 2.3219 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.247746874129566E-15 -3.019298020082854E-15 -1.126429246740836E-13 -5.70947042878831E-15 8.685443620732535E-15 1.630000103302932E-17
q -3.019298020082854E-15 7.35725608136162E-15 1.971512541404684E-13 1.346188633385488E-14 -4.481393104573783E-14 -3.487435738306303E-17
tp -1.126429246740836E-13 1.971512541404684E-13 1.343868376148419E-9 -5.443207287252523E-13 4.042279876295146E-10 2.829421507901566E-14
node -5.70947042878831E-15 1.346188633385488E-14 -5.443207287252523E-13 2.59642976263551E-8 -2.595759856401735E-8 -5.77992166290571E-11
peri 8.685443620732535E-15 -4.481393104573783E-14 4.042279876295146E-10 -2.595759856401735E-8 2.608088476475569E-8 5.780266162735117E-11
i 1.630000103302932E-17 -3.487435738306303E-17 2.829421507901566E-14 -5.77992166290571E-11 5.780266162735117E-11 1.614995467395833E-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 16.2   n/a MPO436672  

136440 (2005 EK56)          Discovered 2005-Mar-04 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 2005 EK56 = 1998 HW33 = 1999 TX226 = 2003 YA168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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