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 ]  
12658 Peiraios (1973 SL)
Classification: Jupiter Trojan          SPK-ID: 2012658
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05691016869423206 4.0651e-08  
a 5.168437598971837 7.2853e-08 au
q 4.874300943328738 2.5311e-07 au
i 1.776623640283932 4.0379e-06 deg
node 111.8827796183641 0.00017331 deg
peri 325.8088135157208 0.00017975 deg
M 302.7089385250955 4.7743e-05 deg
tp 2459683.501583741123
(2022-Apr-14.00158374)
0.00057076 TDB
period 4291.778923567485
11.75
9.0744e-05
2.484e-07
d
yr
n .08388130106682072 1.7736e-09 deg/d
Q 5.462574254614936 7.6999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1685  
   data-arc span      17202 days (47.10 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50056  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:51:31  

Additional Information
 Earth MOID = 3.88992 au 
 Jupiter MOID = .0456201 au 
 T_jup = 2.996 
[ 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 11.2   n/a MPO259433  
diameter diameter 26.458 km 0.453 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.084   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

12658 Peiraios           Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Peiraios, son of Klytios, was a friend of Telemachos.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1973 SL = 1996 TZ39 = 1998 XU79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 18:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin