This packet strongly resembles the l1te packet in use for the 1999-2000 GLAST beam test (BTEM).
| Name | |
| Trigger counter (Event Id) | 32 bit running counter |
| Trigger timer | 32 bit - time in 50 ns increments since last counter reset |
| X Capture Word | 32 bits - X layers hit |
| Y Capture Word | 32 bits - Y layers hit |
| MISC Capture | 8 bits Organized as follows 0 0 CLBR DCDL 0 0 EXT CPU TREQ VETO TREQ TREQ |
| Dead Time Cause | 8 bits Organized as follows: TACK TKR L1T/TKR L1T/TKR L1/TKR TKR L1T CPU 1SHOT FE FIFO FIFO FIFO FIFO FIFO BUSY TACK FIFO FULL FULL HFULL HFULL HFULL DELAY FULL TRAP TRAP |
| Dead Time | 16 bits - where the first 13 bits represent the time |