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55678 Lampos (3291 T-1)
Classification: Jupiter Trojan          SPK-ID: 2055678
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005589750353421 4.8597e-08  
a 5.229892474246208 1.1586e-07 au
q 4.70397984749096 2.1251e-07 au
i 7.38736941691034 6.2754e-06 deg
node 212.1484697372236 3.5642e-05 deg
peri 284.7200071669433 4.8416e-05 deg
M 96.32825913381151 3.1108e-05 deg
tp 2457831.569265294170
(2017-Mar-19.06926529)
0.00038342 TDB
period 4368.552575101934
11.96
0.00014517
3.975e-07
d
yr
n .08240715747631809 2.7384e-09 deg/d
Q 5.755805101001457 1.2751e-07 au
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      18016 days (49.33 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:02:40  

Additional Information
 Earth MOID = 3.72722 au 
 Jupiter MOID = .18285 au 
 T_jup = 2.973 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457359.5 (2015-Dec-03.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011205389352635 4.8756e-08  
q 4.691379812624618 2.144e-07 au
tp 2457814.909481984200
(2017-Mar-02.40948198)
0.00037962 TDB
node 212.1580525812286 3.5621e-05 deg
peri 282.8724635130739 4.8217e-05 deg
i 7.393282716284075 6.2806e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      18016 days (49.33 yr)  
   first obs. used      1971-03-25  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:02:40  

Additional Information
 Jupiter MOID = .18285 au 
 T_jup = 2.973 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.377153142011804E-15 -9.539072107503734E-15 -1.100950266038314E-12 -1.525291681907362E-15 -1.752924148916222E-13 -3.764752792492293E-16
q -9.539072107503734E-15 4.596868250162751E-14 -1.389203481557429E-12 1.327259934093496E-14 1.307632759315259E-13 2.870892147989616E-15
tp -1.100950266038314E-12 -1.389203481557429E-12 1.441105981935902E-7 2.337819248982061E-11 1.235957453484326E-8 -7.275283899731012E-12
node -1.525291681907362E-15 1.327259934093496E-14 2.337819248982061E-11 1.268831212899668E-9 -1.256053954006837E-9 2.012712551754169E-11
peri -1.752924148916222E-13 1.307632759315259E-13 1.235957453484326E-8 -1.256053954006837E-9 2.324839680021552E-9 -2.05948808860928E-11
i -3.764752792492293E-16 2.870892147989616E-15 -7.275283899731012E-12 2.012712551754169E-11 -2.05948808860928E-11 3.944565365800848E-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 12.3   n/a MPO270408  
diameter diameter 17.636 km 1.071 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

55678 Lampos           Discovered 1971 Mar. 26 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Lampos was one of the members of the Trojan senate.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 3291 T-1 = 2000 RY37 = 2001 TV193 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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