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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022829507515846 5.4346e-08  
a 2.438441788985259 1.8963e-08 au
q 2.189030767571874 1.3064e-07 au
i 3.4435868090456 7.5106e-06 deg
node 196.027453701288 9.8975e-05 deg
peri 268.3821201676071 0.00010603 deg
M 304.7299880328038 4.1453e-05 deg
tp 2458814.027626902720
(2019-Nov-26.52762690)
0.00016107 TDB
period 1390.807473148424
3.81
1.6224e-05
4.442e-08
d
yr
n .2588424400575403 3.0195e-09 deg/d
Q 2.687852810398645 2.0903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5911 days (16.18 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56376  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:51:43  

Additional Information
 Earth MOID = 1.20928 au 
 Jupiter MOID = 2.4247 au 
 T_jup = 3.493 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456743.5 (2014-Mar-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012840735547028 5.4386e-08  
q 2.19191017437866 1.3058e-07 au
tp 2457423.708563463655
(2016-Feb-05.20856346)
0.00015713 TDB
node 196.0450630228871 9.9044e-05 deg
peri 268.4899210071076 0.00010621 deg
i 3.441129745641737 7.5087e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5911 days (16.18 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56376  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:51:43  

Additional Information
 Jupiter MOID = 2.4247 au 
 T_jup = 3.493 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.957839658023269E-15 -7.042606896215884E-15 -3.542378404120524E-13 1.151659141310186E-14 -1.090264447299385E-13 1.447913668605371E-15
q -7.042606896215884E-15 1.705195811055801E-14 1.616427895754081E-12 -2.519185095066256E-14 4.063657057135514E-13 -3.33941778683128E-15
tp -3.542378404120524E-13 1.616427895754081E-12 2.468845079814991E-8 6.591840603197173E-11 6.039936205823211E-9 4.092883688658574E-12
node 1.151659141310186E-14 -2.519185095066256E-14 6.591840603197173E-11 9.809703122824588E-9 -9.77553770020852E-9 6.109332111633458E-11
peri -1.090264447299385E-13 4.063657057135514E-13 6.039936205823211E-9 -9.77553770020852E-9 1.128093237984915E-8 -5.98915054495496E-11
i 1.447913668605371E-15 -3.33941778683128E-15 4.092883688658574E-12 6.109332111633458E-11 -5.98915054495496E-11 5.63807687695969E-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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