Timeline Nov 99 - Feb 00, Assembly and commissioning at Pole. Apr-Sept 00, Season 1 - Temperature data taking. Nov 00 - Feb 01, Re-fit with polarizers. Apr 01 - Temperature results released. Apr-Sept 01, Season 2 - Polarization data taking Apr-Sept 02, Season 3 - Polarization data taking Sept 02 - Polarization results released