Req. 5.3.10.1.2: "GRB Alert Message from GBM Instrument"

The SIU FSW shall be able to reconfigure and direct the operation of the LAT instrument within 15 seconds, in response to a GRB notification message from the GBM instrument via the CTDB. Further details are provided in [11].

Basis (help)

[2] (3.2.6.5.2.2)

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

3.2.6.5.2.2: "GBM Telecommands to LAT"

For each burst event detected by the GBM, the LAT shall receive, a series of telecommands across the 1553 bus as defined in the LAT-GBM ICD.

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

Context (help)

Test(s)

011: GRB Handling/Repointing Requests

This test shall verify that the SIU FSW correctly handles and responds to GRB alerts and repointing requests from both the ground and the GBM (via the SC). 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 alerts and requests properly, rejecting the appropriate ones and forwarding repointing requests to the SC for the other cases.