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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03565602213394325 6.7507e-08  
a 2.654759223908246 1.6146e-08 AU
q 2.560101070260284 1.7876e-07 AU
i 2.188408957603546 6.6357e-06 deg
node 277.114616645403 0.00020318 deg
peri 10.81332911580984 0.00025019 deg
M 224.2296756600568 0.00015038 deg
tp 2457396.352120477556
(2016-Jan-08.85212048)
0.00066179 JED
period 1579.923775057321
4.33
1.4413e-05
3.946e-08
d
yr
n .2278590940166964 2.0787e-09 deg/d
Q 2.749417377556209 1.6721e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      19537 days (53.49 yr)  
   first obs. used      1960-09-24  
   last obs. used      2014-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55994  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:02:32  

Additional Information
 Earth MOID = 1.54314 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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