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JPL Small-Body Database Browser
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85030 Admetos (2804 P-L)
Classification: Jupiter Trojan          SPK-ID: 2085030
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08471002000068623 7.9739e-08  
a 5.243125063060103 2.1781e-07 au
q 4.798979834102182 5.1527e-07 au
i 22.688319342 6.7808e-06 deg
node 191.044945356484 1.5736e-05 deg
peri 224.4046938283117 5.6425e-05 deg
M 269.6368928183504 6.4859e-05 deg
tp 2460101.208721135930
(2023-Jun-05.70872114)
0.00082989 TDB
period 4385.142919138174
12.01
0.00027325
7.481e-07
d
yr
n .08209538586047999 5.1156e-09 deg/d
Q 5.687270292018024 2.3626e-07 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      21133 days (57.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2018-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57842  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:04:37  

Additional Information
 Earth MOID = 3.84225 au 
 Jupiter MOID = .0613688 au 
 T_jup = 2.838 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457328.5 (2015-Nov-02.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07796280286812443 7.9814e-08  
q 4.86746048722472 5.2232e-07 au
tp 2455708.730064755497
(2011-May-27.23006476)
0.00076658 TDB
node 191.2567378708543 1.5659e-05 deg
peri 225.1629490993701 6.1055e-05 deg
i 22.67550032325 6.7829e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      21133 days (57.86 yr)  
   first obs. used      1960-09-24  
   last obs. used      2018-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57842  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:04:37  

Additional Information
 Jupiter MOID = .0613688 au 
 T_jup = 2.838 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.370269124479141E-15 -3.872680041208519E-14 1.328099178405512E-11 -1.388798170653972E-14 6.35750021215822E-13 6.71462147615475E-15
q -3.872680041208519E-14 2.728223276030323E-13 -1.823396426713896E-11 1.979146516348468E-13 2.072095817367491E-12 5.107365170328724E-14
tp 1.328099178405512E-11 -1.823396426713896E-11 5.876410995165996E-7 1.289107533528418E-10 4.496194768191923E-8 2.056595927148745E-10
node -1.388798170653972E-14 1.979146516348468E-13 1.289107533528418E-10 2.451888070539099E-10 -2.112563208734915E-10 3.402038722250134E-11
peri 6.35750021215822E-13 2.072095817367491E-12 4.496194768191923E-8 -2.112563208734915E-10 3.727772597962877E-9 -1.293153983314845E-11
i 6.71462147615475E-15 5.107365170328724E-14 2.056595927148745E-10 3.402038722250134E-11 -1.293153983314845E-11 4.600804664155088E-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 12.1   n/a MPO449528  
diameter diameter 20.898 km 0.477 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.070   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

85030 Admetos           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Admetos was the father of Eumelos, the best charioteer in the Greek army.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

Alternate Designations
 2804 P-L = 1997 UE26 = 2002 CM42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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