  We present a calorimetric study on single crystals of Ca(Fe1-xCox)2As2 (x =
0, 0.032, 0.051, 0.056, 0.063, and 0.146). The combined first order
spin-density wave/structural transition occurs in the parent CaFe2As2 compound
at 168 K and gradually shifts to lower temperature for low doping levels (x =
0.032 and x = 0.051). It is completely suppressed upon higher doping x = 0.056.
Simultaneously, superconductivity appears at lower temperature with a
transition temperature around Tc = 14.1 K for Ca(Fe0.937Co0.063)2As2. The phase
diagram of Ca(Fe0.937Co0.063)2As2 has been derived and the upper critical field
is found to be H(c) c2 = 11.5
