TITLE: GCN CIRCULAR NUMBER: 8919 SUBJECT: Swift_BAT_Lightcurve Notice for Trigger Number 344565 is not valid DATE: 09/03/01 04:57:18 GMT FROM: Scott Barthelmy at NASA/GSFC Scott Barthelmy (GSFC) for the Swift Team: At about 02:38 UT a lone Swift-BAT Lightcurve notice was distributed with a trigger number 344565. This notice is not correct. It is not due to a real GRB, nor to anything astrophysical. It was the result of a combination of a BAT Subthreshold trigger [1] and a particular high error-rate stretch of TDRSS telemetry [2]. We apologize for any inconvenience. [1] The BAT Subthreshold operational mode is being tested. Currently, this notice type is not being publically distributed. [2] The CRC error rate was 20 times the normal rate.