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212053 (2005 EP20)
Classification: Main-belt Asteroid          SPK-ID: 2212053
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281787099511187 3.51e-08  
a 2.436407945100988 1.4837e-08 au
q 2.124112317783287 8.7411e-08 au
i 6.84495675364757 4.4411e-06 deg
node 143.7772769256785 3.4332e-05 deg
peri 146.3090328217164 3.9979e-05 deg
M 246.4625586956572 2.3929e-05 deg
tp 2459438.586670611584
(2021-Aug-12.08667061)
9.4587e-05 TDB
period 1389.067778948952
3.80
1.2688e-05
3.474e-08
d
yr
n .2591666191209163 2.3673e-09 deg/d
Q 2.748703572418688 1.6739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      10444 days (28.59 yr)  
   first obs. used      1991-09-17  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:43:07  

Additional Information
 Earth MOID = 1.1119 au 
 Jupiter MOID = 2.42823 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457351.5 (2015-Nov-25.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289840859373239 3.5113e-08  
q 2.121830814954508 8.7494e-08 au
tp 2456658.977845963807
(2014-Jan-01.47784596)
8.1868e-05 TDB
node 143.8181021562871 3.4308e-05 deg
peri 146.0108322732526 3.9886e-05 deg
i 6.847288440500421 4.4433e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      10444 days (28.59 yr)  
   first obs. used      1991-09-17  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:43:07  

Additional Information
 Jupiter MOID = 2.42823 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.23289425413088E-15 -3.038800673561161E-15 8.488108689448034E-14 5.195916484701016E-15 2.736982988409536E-14 -5.2187390401407E-16
q -3.038800673561161E-15 7.655245279036114E-15 1.738344822042858E-13 -1.159328677118535E-14 4.125415617837204E-14 1.707206955506689E-15
tp 8.488108689448034E-14 1.738344822042858E-13 6.702353931519132E-9 1.638514862905087E-11 1.679626599386631E-9 2.775250294241864E-12
node 5.195916484701016E-15 -1.159328677118535E-14 1.638514862905087E-11 1.177045456362783E-9 -1.164043177623502E-9 2.409763443144169E-11
peri 2.736982988409536E-14 4.125415617837204E-14 1.679626599386631E-9 -1.164043177623502E-9 1.590888647091156E-9 -2.320753786923446E-11
i -5.2187390401407E-16 1.707206955506689E-15 2.775250294241864E-12 2.409763443144169E-11 -2.320753786923446E-11 1.974287777348309E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO418135  

212053 (2005 EP20)          Discovered 2005-Mar-03 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 EP20 = 2005 ES248 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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