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227077 (2005 LT18)
Classification: Jupiter Trojan          SPK-ID: 2227077
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08700325625620413 9.3211e-08  
a 5.162056577996197 1.6373e-07 au
q 4.712940846731771 5.712e-07 au
i 12.14658353126843 8.7356e-06 deg
node 202.7418170470774 2.5039e-05 deg
peri 183.9818069165104 4.2489e-05 deg
M 348.8858896262392 3.2213e-05 deg
tp 2459332.752768456706
(2021-Apr-28.25276846)
0.00038199 TDB
period 4283.833347275219
11.73
0.00020381
5.58e-07
d
yr
n .08403688258064056 3.9982e-09 deg/d
Q 5.611172309260625 1.7798e-07 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      6486 days (17.76 yr)  
   first obs. used      2003-04-04  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:21  

Additional Information
 Earth MOID = 3.71612 au 
 Jupiter MOID = .156919 au 
 T_jup = 2.948 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.41   n/a E2021B55  
diameter diameter 9.840 km 1.137 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.080   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

227077 (2005 LT18)          Discovered 2005-Jun-08 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2005 LT18 = 2009 RC54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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