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12607 Alcaeus (2058 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012607
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03610653855460833 5.3946e-08  
a 2.654191985161078 1.9134e-08 au
q 2.558358299917527 1.4799e-07 au
i 2.188084555062379 5.9662e-06 deg
node 277.1017589416454 0.00017924 deg
peri 11.28308895734694 0.00020816 deg
M .5634441900731676 0.00010949 deg
tp 2457398.028017845263
(2016-Jan-10.52801785)
0.00048038 JED
period 1579.417431901484
4.32
1.7079e-05
4.676e-08
d
yr
n .2279321430349104 2.4647e-09 deg/d
Q 2.750025670404629 1.9824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      754  
   data-arc span      19991 days (54.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54297  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:10:02  

Additional Information
 Earth MOID = 1.54032 au 
 Jupiter MOID = 2.29846 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO337365  

12607 Alcaeus           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Alcaeus (ca. 620 B.C.-ca. 580 B.C.) was a Greek poet from the island of Lesbos. His songs are as famous as those of Sappho. Many of his songs were translated into Latin and influenced Theocrites and Horace.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

[ show close-approach data ]
Alternate Designations
 2058 P-L = 1993 FB28 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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