The objective of this thesis is to retrieve Light Curves, Spectral Models, Spectral Maps, and to geta Spectral Energy Distribution (SED) plot, for the source of PKS1830-211. Finally, also to do amodelling of the whole SED coming from the source with the JetSet software. Which will then becompared to a previous modelling done by A. A. Abdo. First, a light curve is taken over the wholeFermi duration period. The Light Curve is a statistical plot of the overall flux from the source overtime. It will set every photon in a defined energy interval as a datapoint in a defined time bin width. Alight curve will first be taken over the Fermi Duration Period, to get a view of potential flares comingfrom the source. Three periods are then chosen to get a loud, an intermediate, and a loud flaringperiod. Variability is checked on all of these including the longer fermi duration period. A spectralmodel will be fitted for all of these periods. It’s a mathematical formula to the shape of the source’sflux spectrum over energy. By doing this, the electron energy distribution can be understood. SpectralMaps will then give a plot of the number of contributing photons from the source, of a given period.It also shows how well the models are adjusted to other light sources in the field of view. To get thecollected data from relevant catalogs, together with Fermi data from this analysis. A Spectral EnergyDistribution is downloaded from [Sed builder. [Online]. Available: https://tools.ssdc.asi.it/SED/] provided by the Italian space agency. The modelling is done toget an idea of the physical parameters present in the AGN. Such as the physical scales and proportionsof the structure near the core. Data from the SED will be used in the modelling with the best suitedperiod for the Fermi-LAT range.