Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06980791461855287 7.0537e-08  
a 5.221549382321409 1.4498e-07 au
q 4.857043908863758 4.4608e-07 au
i 9.894130809467457 7.3905e-06 deg
node 219.1084379404741 3.4793e-05 deg
peri 194.8024259877197 6.575e-05 deg
M 294.0284525630753 6.227e-05 deg
tp 2459799.141146674532
(2022-Aug-07.64114667)
0.00077597 TDB
period 4358.103212263135
11.93
0.0001815
4.969e-07
d
yr
n .08260474395994268 3.4403e-09 deg/d
Q 5.586054855779059 1.551e-07 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      7997 days (21.89 yr)  
   first obs. used      1997-10-07  
   last obs. used      2019-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:34:06  

Additional Information
 Earth MOID = 3.8691 au 
 Jupiter MOID = .128072 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-08 15:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin