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90518 (2004 EL60)
Classification: Main-belt Asteroid          SPK-ID: 2090518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137449535844176 5.167e-08  
a 2.197675021433791 7.2754e-09 au
q 1.895605609801376 1.1532e-07 au
i 7.784323318705103 5.266e-06 deg
node 343.0617388157806 2.9343e-05 deg
peri 223.7644355950879 3.3037e-05 deg
M 344.8354156367699 1.5074e-05 deg
tp 2459050.626992145362
(2020-Jul-20.12699215)
4.9879e-05 TDB
period 1189.990885347725
3.26
5.9092e-06
1.618e-08
d
yr
n .3025233255419475 1.5023e-09 deg/d
Q 2.499744433066205 8.2754e-09 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      9013 days (24.68 yr)  
   first obs. used      1995-08-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:32:45  

Additional Information
 Earth MOID = .900979 au 
 Jupiter MOID = 2.48545 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457027.5 (2015-Jan-05.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376181252949028 5.1648e-08  
q 1.895515814340054 1.1531e-07 au
tp 2456670.462055315579
(2014-Jan-12.96205532)
4.878e-05 TDB
node 343.0895685686381 2.9327e-05 deg
peri 223.7737334922771 3.3018e-05 deg
i 7.786526969673823 5.2669e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      9013 days (24.68 yr)  
   first obs. used      1995-08-25  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:32:45  

Additional Information
 Jupiter MOID = 2.48545 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.667465933535218E-15 -5.947104047199709E-15 -5.054207191715994E-13 -2.107225305966021E-15 -7.882066266553922E-14 -1.76218336513747E-15
q -5.947104047199709E-15 1.32957288621034E-14 1.102058996482998E-12 4.4830953990382E-15 1.696134983515524E-13 3.978192693594631E-15
tp -5.054207191715994E-13 1.102058996482998E-12 2.37950713136835E-9 7.627426800967824E-12 7.469054418657499E-10 1.872946225158594E-12
node -2.107225305966021E-15 4.4830953990382E-15 7.627426800967824E-12 8.600636177839001E-10 -8.490707961205317E-10 3.129387529885644E-11
peri -7.882066266553922E-14 1.696134983515524E-13 7.469054418657499E-10 -8.490707961205317E-10 1.090215853883425E-9 -3.04384522914369E-11
i -1.76218336513747E-15 3.978192693594631E-15 1.872946225158594E-12 3.129387529885644E-11 -3.04384522914369E-11 2.774047096555757E-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 16.2   n/a MPO351479  
diameter diameter 1.594 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90518 (2004 EL60)          Discovered 2004-Mar-15 by NEAT at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2004 EL60 = 1995 SO14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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