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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0358817137271308 6.3233e-08  
a 2.653780038009207 2.2623e-08 AU
q 2.558557862390586 1.6629e-07 AU
i 2.188246188693593 6.3507e-06 deg
node 277.1036005952832 0.000194 deg
peri 11.32724048970511 0.00023947 deg
M 269.318274517547 0.00014545 deg
tp 2457398.252653664137
(2016-Jan-10.75265366)
0.00064016 JED
period 1579.049743013514
4.32
2.0192e-05
5.528e-08
d
yr
n .2279852180672683 2.9153e-09 deg/d
Q 2.749002213627828 2.3435e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      19877 days (54.42 yr)  
   first obs. used      1960-09-24  
   last obs. used      2015-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55243  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:31:40  

Additional Information
 Earth MOID = 1.54353 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 14.6 mag n/a MPO253452  

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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