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212137 (2005 EF251)
Classification: Main-belt Asteroid          SPK-ID: 2212137
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022100360568578 5.4144e-08  
a 2.438303738971884 1.4882e-08 au
q 2.189084625893997 1.2874e-07 au
i 3.443530513513591 5.2271e-06 deg
node 196.0180985857235 9.6801e-05 deg
peri 268.2652714916621 0.00010089 deg
M 48.37350496872933 2.6451e-05 deg
tp 2458813.631891788601
(2019-Nov-26.13189179)
0.00010252 TDB
period 1390.689365998835
3.81
1.2732e-05
3.486e-08
d
yr
n .2588644227831837 2.3699e-09 deg/d
Q 2.687522852049772 1.6403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      5980 days (16.37 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:42:33  

Additional Information
 Earth MOID = 1.20916 au 
 Jupiter MOID = 2.42389 au 
 T_jup = 3.493 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457291.5 (2015-Sep-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012498732552922 5.4184e-08  
q 2.191399519303707 1.2874e-07 au
tp 2457424.318141116663
(2016-Feb-05.81814112)
0.00010705 TDB
node 196.0357032253623 9.6839e-05 deg
peri 268.6807855815476 0.000101 deg
i 3.441862697896771 5.2275e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      5980 days (16.37 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:42:33  

Additional Information
 Jupiter MOID = 2.42389 au 
 T_jup = 3.493 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.935941525950742E-15 -6.941055729758684E-15 1.428548563761838E-13 -5.055152312436011E-15 1.953710566542393E-14 -3.476033347088706E-15
q -6.941055729758684E-15 1.657414928457458E-14 -8.236186143211644E-13 1.170315532492601E-14 -1.809077321524315E-13 8.310891001313529E-15
tp 1.428548563761838E-13 -8.236186143211644E-13 1.145943559437953E-8 1.913725843358722E-11 3.105734040420672E-9 -2.005122434530979E-12
node -5.055152312436011E-15 1.170315532492601E-14 1.913725843358722E-11 9.377822188693666E-9 -9.355646391327649E-9 -3.999966891070201E-11
peri 1.953710566542393E-14 -1.809077321524315E-13 3.105734040420672E-9 -9.355646391327649E-9 1.02015059025041E-8 3.946739449766842E-11
i -3.476033347088706E-15 8.310891001313529E-15 -2.005122434530979E-12 -3.999966891070201E-11 3.946739449766842E-11 2.732707226153264E-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 17.4   n/a MPO454522  

212137 (2005 EF251)          Discovered 2005-Mar-10 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2005 EF251 = 2003 UP377 = 2007 TW267 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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