The software that has identified the first photon of AGILE satellite in observation mode has been developed at INAF/IASF Bologna by {cb_profile=bulgarelli}Andrea Bulgarelli{/cb_profile} of the AGILE GSE Team. On 10 May 2007, during the orbit 242, the Silicon Tracker and Minicalorimeter instruments have captured this gamma ray. The picture shows the two tracks of electron and positron converted from the captured photon. The software is part of the on-line data processing provided by IASF/BO and exploited at Telespazio during the AGILE commissioning phase.