We study the effect of a phenomenological parameterized quintessence model on low , intermediate and high redshift observations .
At low and intermediate redshifts , we use the Gold sample of supernova Type Ia ( SNIa ) data and recently observed size of baryonic acoustic peak from Sloan Digital Sky Survey ( SDSS ) , to put constraint on the parameters of the quintessence model .
At the high redshift , the same fitting procedure is done using WAMP data , comparing the location of acoustic peak with that obtain from the dark energy model .
As a complementary analysis in a flat universe , we combine the results from the SNIa , CMB and SDSS .
The best fit values for the model parameters are \Omega _ { m } = 0.27 ^ { +0.02 } _ { -0.02 } ( the present matter content ) and w _ { 0 } = -1.45 ^ { +0.35 } _ { -0.60 } ( dark energy equation of state ) .
Finally we calculate the age of universe in this model and compare it with the age of old stars and high redshift objects . PACS numbers : 05.10.-a ,05.10.Gg , 05.40.-a , 98.80.Es , 98.70.Vc