TITLE: GCN CIRCULAR NUMBER: 16577 SUBJECT: Fermi GBM Observations of SGR 1935+2154 DATE: 14/07/11 10:30:04 GMT FROM: Yuki Kaneko at Sabanci U Y. Kaneko, E. Gogus (Sabanci University), G. Younes (USRA/NASA-MSFC), S. Guiriec (GSFC/CRESST/UMD), C. Kouveliotou (NASA-MSFC)(Sabanci University), A. von Kienlin (MPE) report on behalf of the Fermi GBM magnetar team: We have searched for untriggered events from the newly discovered SGR 1935+2154 using the daily GBM data of 6 days, from July 3 to July 8. We identified 3 bursts from the direction of the SGR at the following times coinciding with the Swift BAT observations (Cummings, GCN 16530), all on July 5: 1: 09:32:49 UT (426245572 Fermi MET = BAT trigger 603488) 2: 09:37:35 UT (426245857 Fermi MET = Trig+285.8 s) 3: 09:41:07 UT (426246069 Fermi MET = Trig+497.4 s) We note that the 3rd burst was extremely weak, detected with much lower significance (<3.5 sigma). The SGR was not visible to GBM at the time of the fourth event detected with BAT at Trig+27157 s (426272729 MET). No other events from the direction of the SGR were identified in the GBM data at >4.5-sigma level.