The test campaign in the Seychelles is successful, with two driftsondes flying since February 2010, and dropsondes regularly dropped while the MetOp satellite is flying over the balloons. Another balloon carries meteorological and chemical sensors. Meteorological data are transmitted on the GTS and are also available on the site http://www.cnrm.meteo.fr/concordiasi-dataset/
One of the first soundings co-located with IASI is shown below