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172783 (2004 EL80)
Classification: Main-belt Asteroid          SPK-ID: 2172783
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07238605399421315 3.8681e-08  
a 2.990062356225368 2.8078e-08 au
q 2.773623541061574 1.1923e-07 au
i 10.85772960299165 4.7469e-06 deg
node 82.2197288493888 2.4367e-05 deg
peri 255.4803591601082 4.3189e-05 deg
M 244.5583949582597 3.7722e-05 deg
tp 2459606.089937851361
(2022-Jan-26.58993785)
0.00020045 TDB
period 1888.507852499652
5.17
2.6601e-05
7.283e-08
d
yr
n .1906266894911237 2.6851e-09 deg/d
Q 3.206501171389162 3.011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      9957 days (27.26 yr)  
   first obs. used      1993-01-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59706  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:33  

Additional Information
 Earth MOID = 1.78855 au 
 Jupiter MOID = 2.07583 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457305.5 (2015-Oct-10.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07125542323992622 3.8732e-08  
q 2.777713697960714 1.1928e-07 au
tp 2457719.695063328243
(2016-Nov-27.19506333)
0.00019653 TDB
node 82.23406121516463 2.4364e-05 deg
peri 256.0654194272472 4.3631e-05 deg
i 10.85743799149522 4.7468e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      9957 days (27.26 yr)  
   first obs. used      1993-01-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59706  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:33  

Additional Information
 Jupiter MOID = 2.07583 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.500188535961908E-15 -4.50783150223065E-15 8.666152972988058E-13 6.89249226304755E-15 1.782827468656776E-13 9.327858207491955E-16
q -4.50783150223065E-15 1.422761292087932E-14 -1.620469952458835E-12 -2.157183707323815E-14 -3.786416294159809E-13 -1.2552156356003E-15
tp 8.666152972988058E-13 -1.620469952458835E-12 3.862229785519357E-8 2.607844750973233E-11 7.139509876935707E-9 1.638722947302328E-11
node 6.89249226304755E-15 -2.157183707323815E-14 2.607844750973233E-11 5.935838767860222E-10 -5.777852946136781E-10 -2.51478265643231E-11
peri 1.782827468656776E-13 -3.786416294159809E-13 7.139509876935707E-9 -5.777852946136781E-10 1.903697056691044E-9 2.771877309436915E-11
i 9.327858207491955E-16 -1.2552156356003E-15 1.638722947302328E-11 -2.51478265643231E-11 2.771877309436915E-11 2.253190818108696E-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 15.1   n/a MPO469851  

172783 (2004 EL80)          Discovered 2004-Mar-14 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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Alternate Designations
 2004 EL80 = 2003 AP18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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