TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5274 SUBJECT: Swift-BAT trigger 215279 is not a GRB DATE: 06/06/19 15:08:36 GMT FROM: Scott Barthelmy at NASA/GSFC J. Cummings (GSFC/ORAU), L. Barbier (GSFC), S. Barthelmy (GSFC), E. Fenimore (LANL), N. Gehrels (GSFC), S. T. Holland (GSFC/USRA), D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), M. Koss (GSFC/UMD), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/JSPS/USRA), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC) on behalf of the Swift-BAT team: Using the data set from T-61 to T+7.4 sec from the recent telemetry downlink, we report that BAT trigger #215279 (Holland, et al., GCN 5273) is NOT due to a GRB, nor any other astrophysical source. The trigger is due to the rising background upon entry into the SAA.