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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07238605509725088 4.0728e-08  
a 2.990062357505119 3.1357e-08 au
q 2.773623538950538 1.2186e-07 au
i 10.85772804884657 5.1211e-06 deg
node 82.2197243600904 2.4908e-05 deg
peri 255.4803633979732 4.4209e-05 deg
M 244.5583948255141 3.7977e-05 deg
tp 2459606.089938936515
(2022-Jan-26.58993894)
0.00020133 TDB
period 1888.507853712078
5.17
2.9708e-05
8.134e-08
d
yr
n .1906266893687409 2.9987e-09 deg/d
Q 3.2065011760597 3.3627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1993-01-22  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:54:06  

Additional Information
 Earth MOID = 1.78855 au 
 Jupiter MOID = 2.07583 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457104.5 (2015-Mar-23.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07119161913799432 4.0727e-08  
q 2.777662743953298 1.2172e-07 au
tp 2457720.113318861210
(2016-Nov-27.61331886)
0.00019953 TDB
node 82.23317102237461 2.4904e-05 deg
peri 256.1486194868154 4.472e-05 deg
i 10.85770707440288 5.121e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1993-01-22  
   last obs. used      2019-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:54:06  

Additional Information
 Jupiter MOID = 2.07583 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.658652722270497E-15 -4.814597649953175E-15 4.489707097720671E-13 4.715755242797356E-15 7.970910978901686E-14 3.755592286868095E-16
q -4.814597649953175E-15 1.48157991787051E-14 -8.120899453582998E-13 -1.62846692624476E-14 -1.885746193602338E-13 3.471233095066777E-16
tp 4.489707097720671E-13 -8.120899453582998E-13 3.981343851966238E-8 1.794751901465401E-11 7.431270089356387E-9 1.24656902713948E-11
node 4.715755242797356E-15 -1.62846692624476E-14 1.794751901465401E-11 6.202102140084392E-10 -6.053580938782939E-10 -1.532071505397449E-11
peri 7.970910978901686E-14 -1.885746193602338E-13 7.431270089356387E-9 -6.053580938782939E-10 1.99986849013457E-9 1.732355333521976E-11
i 3.755592286868095E-16 3.471233095066777E-16 1.24656902713948E-11 -1.532071505397449E-11 1.732355333521976E-11 2.622500320049937E-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

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