TITLE: GCN CIRCULAR NUMBER: 16071 SUBJECT: GRB 140402A: Marginal BAT detection DATE: 14/04/02 14:44:10 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift J. R. Cummings, S. Barthelmy (GSFC), Hans Krimm (USRA/GSFC) on behalf of the Swift-BAT team At 00:10:06 Swift-BAT triggered on GRB 140402A(trigger # 594308), also seen by FERMI-LAT (Bissaldi et al. GCN Circ #16069) and Fermi-GBM (Jenke & Yu, GCN Circ #16070) . There is a marginal BAT source (6 sigma), which is consistent with the Fermi-LAT position, at RA, Dec 207.651, +6.006, which is: RA (J2000) 13h 50m 36.2s Dec (J2000) 06d 00m 22s with an estimated 90% uncertainty radius of 4 arcmin. The partial coding was 73% (i.e. all of the Fermi-LAT error circle was in a fairly highly coded part of BAT's field of view). This burst appears to have a very hard spectrum. We may be able to improve the detection when we receive the photon event data. The unweighted lightcurve shows a single peak of about 0.32 seconds duration. A previous Swift TOO at the Fermi-LAT position did not cover this position. A new TOO has been requested.