Req. 5.3.11.3.1: "Send Alert Message"

The SIU FSW shall send a GRB alert message, to the SC via the CTDB, when a GRB is detected by the LAT (see also section 5.3.10.2.1). Further details are provided in [11].

Basis (help)

[2] (3.2.6.5.1.1)

2: "LAT Instrument - Spacecraft Interface Requirements Doc." (NASA 433-IRD-0001)

3.2.6.5.1.1: "LAT generated Burst Alert Telemetry"

For each detected burst, the LAT shall send alert telemetry to the SC on the 1553 bus for immediate transmission to the ground.

11: "LAT-GBM Interface Control Doc." (NASA 433-ICD-0001)

Context (help)

Test(s)

012b: Additional Science Processing - Repointing Logic

This test verifies the LAT's internal logic for requesting repointing for LAT-detected GRBs. Verification shall include a variety of scenarios, including repointing enable, different operational modes, and conflicting requests. The test shall verify that the SIU FSW responds to these events properly, forwarding repointing requests to the SC, sending a command indicating the time of GRB detection, and (for a LAT-detected burst alert) issuing a LAT closeout message to the GBM.