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JPL Small-Body Database Browser
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26763 Peirithoos (2706 P-L)
Classification: Jupiter Trojan          SPK-ID: 2026763
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06758690849218046 6.216e-08  
a 5.339920760343333 1.3009e-07 au
q 4.979012024558513 4.0585e-07 au
i 1.205048722492357 5.248e-06 deg
node 100.1584449275694 0.00034328 deg
peri 305.0190673479637 0.00034753 deg
M 285.1674665601001 5.798e-05 deg
tp 2459537.389978084682
(2021-Nov-18.88997808)
0.00074296 TDB
period 4507.135821899778
12.34
0.0001647
4.509e-07
d
yr
n .07987334179076466 2.9188e-09 deg/d
Q 5.700829496128152 1.3888e-07 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      21550 days (59.00 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55882  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:55:25  

Additional Information
 Earth MOID = 3.98795 au 
 Jupiter MOID = .00557302 au 
 T_jup = 2.995 
[ 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 12.4   n/a MPO452544  
diameter diameter 11.770 km 1.006 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.153   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

26763 Peirithoos           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Peirithoos was a friend of Theseus and the father of Greek hero Polypoites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 2706 P-L = 2000 AU232 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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