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22503 Thalpius (1997 TB12)
Classification: Jupiter Trojan          SPK-ID: 2022503
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 .07001795416086579 6.9159e-08  
a 5.220507499187426 1.2009e-07 au
q 4.854978244412865 4.4509e-07 au
i 9.895003857723207 6.1626e-06 deg
node 219.102804826093 3.2331e-05 deg
peri 195.0999330823665 5.7406e-05 deg
M 310.2995742686992 5.0759e-05 deg
tp 2459801.985442743412
(2022-Aug-10.48544274)
0.00062485 TDB
period 4356.798884546718
11.93
0.00015034
4.116e-07
d
yr
n .08262947396468003 2.8513e-09 deg/d
Q 5.586036753961988 1.285e-07 au
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      8527 days (23.35 yr)  
   first obs. used      1997-10-07  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:04  

Additional Information
 Earth MOID = 3.86633 au 
 Jupiter MOID = .128682 au 
 T_jup = 2.965 
[ 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 12.2   n/a MPO337448  
diameter diameter 15.704 km 1.296 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.104   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

22503 Thalpius           Discovered 1997 Oct. 7 by M. Tichy and Z. Moravec at Klet.
Thalpius, son of Eurytus, was leader of the Elean flotilla against Troy and one of those who entered Troy in the Wooden Horse. The citation was prepared by J. Ticha.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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