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JPL Small-Body Database Browser
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201438 (2003 EQ20)
Classification: Main-belt Asteroid          SPK-ID: 2201438
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08239659247086038 5.0982e-08  
a 2.27211760241594 1.3503e-08 au
q 2.084902854283805 1.1259e-07 au
i 7.464871127233558 6.0494e-06 deg
node 356.1085655280822 4.0136e-05 deg
peri 244.1973010987095 5.7879e-05 deg
M 310.6318827136303 3.8793e-05 deg
tp 2459172.049201398524
(2020-Nov-18.54920140)
0.00013486 TDB
period 1250.963494216938
3.42
1.1152e-05
3.053e-08
d
yr
n .2877781819087759 2.5654e-09 deg/d
Q 2.459332350548074 1.4616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      8299 days (22.72 yr)  
   first obs. used      1996-01-25  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57364  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 03:43:49  

Additional Information
 Earth MOID = 1.08609 au 
 Jupiter MOID = 2.55575 au 
 T_jup = 3.596 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456542.5 (2013-Sep-07.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08258340750150879 5.083e-08  
q 2.08442492113951 1.1231e-07 au
tp 2456670.257702566331
(2014-Jan-12.75770257)
0.00013562 TDB
node 356.1416124067643 4.0121e-05 deg
peri 244.3415841559823 5.7868e-05 deg
i 7.467004924706722 6.0503e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      8299 days (22.72 yr)  
   first obs. used      1996-01-25  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57364  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 03:43:49  

Additional Information
 Jupiter MOID = 2.55575 au 
 T_jup = 3.596 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.583696163174585E-15 -5.677433128454277E-15 -1.094773699798227E-12 1.380552124157974E-14 -4.234627873410267E-13 -4.076086027597186E-15
q -5.677433128454277E-15 1.261332669020624E-14 2.281692555373207E-12 -2.937463142505627E-14 8.876027088968573E-13 9.667120018365651E-15
tp -1.094773699798227E-12 2.281692555373207E-12 1.839387729899689E-8 -7.851641974548335E-11 5.669733640227426E-9 -8.911359242727582E-12
node 1.380552124157974E-14 -2.937463142505627E-14 -7.851641974548335E-11 1.609728273240218E-9 -1.620177264175254E-9 -2.625558158236075E-11
peri -4.234627873410267E-13 8.876027088968573E-13 5.669733640227426E-9 -1.620177264175254E-9 3.34873001948083E-9 2.350538442581735E-11
i -4.076086027597186E-15 9.667120018365651E-15 -8.911359242727582E-12 -2.625558158236075E-11 2.350538442581735E-11 3.660563647670617E-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 16.5   n/a MPO454427  

201438 (2003 EQ20)          Discovered 2003-Mar-06 by LONEOS at Anderson Mesa
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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